Diaper dermatitis, commonly known as diaper rash, is an inflammatory skin reaction that occurs in the diaper-covered area (buttocks, thighs, genitals) of infants and toddlers.
It is the most common dermatological condition in infancy, especially between 9β12 months of age.
Atopic dermatitis (eczema) is a chronic, relapsing inflammatory skin condition that causes dry, itchy, red, and scaly skin, primarily in infants and children. It is a part of the βatopic triadβ along with asthma and allergic rhinitis.
It affects up to 20% of children and often begins in early infancy.
π Etiology (Causes & Risk Factors):
β 1. Genetic Factors:
Family history of:
Atopic dermatitis
Asthma
Allergic rhinitis (hay fever)
β 2. Environmental Triggers:
Soaps, detergents, wool
Dry weather or extreme temperatures
Dust mites, pet dander, pollen
Food allergens (e.g., eggs, milk, peanuts)
Emotional stress
β 3. Skin Barrier Defects:
Mutation in filaggrin gene β impairs skinβs ability to retain moisture
Seborrheic dermatitis, commonly known in infants as Cradle Cap, is a non-contagious, inflammatory skin condition that causes scaly, greasy patches on the scalp and other sebaceous (oil-producing) areas like the face, behind ears, and diaper region.
It typically occurs in newborns and infants under 3 months, and usually resolves on its own within weeks to months.
π Etiology (Causes):
While the exact cause is not fully understood, contributing factors include:
β 1. Overactive Sebaceous Glands:
Due to maternal hormones (androgens) passed to the baby before birth.
β 2. Malassezia Yeast Overgrowth:
A normal skin yeast that can multiply in oily areas, triggering inflammation.
β 3. Other Contributing Factors:
Immature immune system
Genetics (family history of eczema or dermatitis)
Weather (more common in cold/dry seasons)
It is not caused by poor hygiene or allergies and is not contagious.
π¬ Pathophysiology:
Excessive sebaceous gland activity in the infant causes increased sebum (oil) production.
Sebum traps dead skin cells, forming thick, greasy scales.
Overgrowth of Malassezia yeast on oily skin leads to mild inflammation, redness, and flaking.
πΆ Clinical Manifestations:
Thick, yellow or white greasy scales or crusts on the scalp
Mild redness underneath the crusts
No itching or pain
Can also affect:
Forehead
Eyebrows
Behind ears
Neck folds
Diaper area (seborrheic diaper dermatitis)
Infant is typically not irritable unless the rash becomes secondarily infected.
π§ͺ Diagnostic Evaluation:
Clinical diagnosis based on appearance and distribution
No lab tests needed
Rule out atopic dermatitis or psoriasis if rash is persistent or severe
π Medical Management:
Usually self-limiting and improves with gentle care.
β 1. Home-Based Management:
Daily washing of scalp with mild baby shampoo
Soft brushing with a soft toothbrush or baby comb to loosen scales
Apply natural oils (coconut oil, olive oil, baby oil) before shampooing to soften scales
β 2. Medicated Shampoos (if persistent):
Ketoconazole 2% shampoo
Selenium sulfide (used carefully, avoid eyes)
Zinc pyrithione shampoo
Use only under medical advice, typically once or twice weekly.
Impetigo is a highly contagious, superficial bacterial skin infection, commonly seen in infants and young children, especially between 2β6 years of age.
It usually affects the face, nose, mouth, and extremities, and spreads easily in schools, daycares, or among siblings.
π Etiology (Causes):
Caused by bacterial infection, primarily:
πΉ 1. Staphylococcus aureus (most common)
πΉ 2. Streptococcus pyogenes (Group A beta-hemolytic strep)
Often enters through cuts, insect bites, or eczema-damaged skin.
π¬ Pathophysiology (Step-by-Step):
Skin barrier is breached (due to a scratch, wound, or eczema).
Bacteria invade the superficial epidermis.
Infected area becomes red and inflamed, forming pustules or blisters.
Blisters rupture, leaving honey-colored crusts, typical of impetigo.
Infection spreads via:
Autoinoculation (scratching and touching other body parts)
Close contact (siblings, classmates)
πΆ Types & Clinical Manifestations:
β 1. Non-Bullous Impetigo (Most Common):
Begins as red macules or vesicles near nose/mouth or extremities
Quickly ruptures, forming honey-colored crusts
Mild itching, no pain
May be associated with lymphadenopathy
β 2. Bullous Impetigo:
Caused by Staph aureus toxin
Larger fluid-filled blisters on trunk or diaper area
Blisters rupture easily, leaving shiny red base
β 3. Ecthyma (Severe, ulcerative form):
Deeper infection with painful sores and punched-out ulcers
Seen in neglected or immunocompromised children
π§ͺ Diagnostic Evaluation:
Clinical appearance is usually sufficient for diagnosis.
Bacterial culture and sensitivity:
For recurrent or severe cases
Helps guide antibiotic choice
Microscopy (gram stain): May reveal gram-positive cocci in clusters/chains
π Medical Management:
πΉ 1. Topical Antibiotics (Mild Cases):
Mupirocin (Bactroban) or Fusidic acid 3β4 times/day
Apply after gently cleaning the crusted areas
πΉ 2. Oral Antibiotics (Moderate to Severe or Extensive Lesions):
Cephalexin, amoxicillin-clavulanate, clindamycin, or erythromycin
Course: 5β7 days
πΉ 3. Hygiene Measures:
Wash affected area with mild soap and water
Keep nails trimmed and clean
Wash hands frequently
Avoid scratching or touching lesions
π« Isolation Guidelines:
Child should stay home until 24 hours after starting antibiotics
Scabies is a highly contagious skin infestation caused by the Sarcoptes scabiei var. hominis mite. It leads to intense itching, especially at night, and a rash with burrows, typically affecting areas with thin skin.
Common in children, infants, and crowded living environments (schools, hostels, daycares).
π Etiology (Causes):
β Causative Organism:
Sarcoptes scabiei β a microscopic, eight-legged human-specific mite.
β Transmission:
Skin-to-skin contact (most common)
Sharing of clothing, bedding, towels
Prolonged close contact (10β15 minutes)
Mites cannot jump or fly but survive 24β36 hours off the host.
π¬ Pathophysiology:
Female mite burrows into the stratum corneum (top skin layer).
Lays eggs and deposits feces (scybala).
This triggers a hypersensitivity reaction:
Causes intense itching
Leads to scratching, skin damage, and possible secondary infection
Life cycle: ~10β14 days; infestation increases without treatment.
πΆ Clinical Manifestations:
πΉ Primary Symptoms:
Severe itching, worse at night
Papular rash or vesicles, often in lines (burrows)
Tinea (commonly known as ringworm) is a fungal infection of the skin, hair, or nails caused by dermatophyte fungi. It is characterized by itchy, ring-shaped, scaly patches and is highly contagious.
Despite the name, ringworm is not caused by worms but by fungi that feed on keratin in skin, hair, and nails.
Pediculosis capitis** is a parasitic infestation of the scalp hair and skin by the head louse (Pediculus humanus capitis). It is common in school-aged children, especially ages 3 to 11 years, and spreads easily in close-contact settings.
It causes itching, discomfort, and can lead to secondary infections due to scratching.
π Etiology (Causes & Risk Factors):
β Causative Organism:
Pediculus humanus capitis (head louse) β a wingless insect that feeds on blood from the scalp
β Transmission:
Direct head-to-head contact (most common)
Sharing personal items (combs, hats, pillows, headphones, etc.)
Crowded settings like:
Schools
Daycare centers
Sleepovers/camps
Lice do not fly or jump, they crawl.
π¬ Pathophysiology:
Female lice lay eggs (nits) on the hair shaft near the scalp.
Nits hatch in 7β10 days into nymphs β mature into adult lice in another 7 days.
Lice feed on scalp blood multiple times a day β inject saliva β causes itching and hypersensitivity.
Scratching β skin breakdown, leading to secondary bacterial infection.
πΆ Clinical Manifestations:
Intense scalp itching (especially behind ears, nape of neck)
Tickling or crawling sensation
Red papules or scratch marks on scalp and neck
Nits (eggs) seen as white or yellowish ovals stuck near scalp on hair shafts
Live lice may be seen crawling
Lymphadenopathy (in severe cases)
Secondary bacterial infection (impetigo) may develop
π§ͺ Diagnostic Evaluation:
Visual Inspection:
Use fine-tooth comb and magnifying glass to check for:
Nits (firmly attached to hair shaft)
Live lice (move quickly and are harder to find)
Woodβs Lamp (optional):
Nits fluoresce pale blue under UV light
Differentiation:
Differentiate nits from dandruff (nits don’t brush off easily)
π Medical Management:
β 1. Topical Pediculicides (First-line):
Permethrin 1% cream rinse (Nix): Apply to washed, towel-dried hair, leave for 10 mins, rinse. Repeat in 7β10 days.
Pyrethrin with piperonyl butoxide (RID): Safe for children >2 years.
Malathion 0.5% lotion: For resistant lice (flammable β use with caution).
Avoid using conditioner before applying pediculicides.
β 2. Wet Combing (Mechanical Removal):
Use fine-tooth nit comb on wet, conditioned hair
Repeat every 2β3 days for 2 weeks
β 3. Ivermectin Lotion (0.5%) or Oral Ivermectin:
For resistant or difficult cases
Not first-line in children under 15 kg
β 4. Antibiotics:
For secondary skin infections (e.g., impetigo)
π§Ό Environmental Control:
Wash all clothing, pillowcases, bed linen, and towels in hot water (β₯130Β°F or 54Β°C)
Items that cannot be washed β Seal in plastic bag for 2 weeks
Vacuum furniture, car seats, and floors
Do NOT use insecticide sprays in the home (unnecessary and unsafe)
Contact dermatitis is a localized skin inflammation that occurs when the skin comes into direct contact with an irritant or allergen. It is non-contagious and often self-limiting, but can cause significant discomfort.
Common in children due to sensitive skin and frequent exposure to soaps, clothing dyes, metals, and plants.
π Etiology (Causes):
β 1. Irritant Contact Dermatitis (ICD):
Caused by direct chemical damage to the skin from:
Soaps, detergents, hand sanitizers
Saliva (drool rash)
Urine/feces (diaper dermatitis)
Chlorine (swimming pool)
Most common type in children.
β 2. Allergic Contact Dermatitis (ACD):
Caused by immune-mediated reaction to a specific allergen:
Molluscum contagiosum is a common viral skin infection caused by the Molluscum contagiosum virus (MCV), a poxvirus, leading to small, painless, flesh-colored bumps with a central dimple (umbilication).
It primarily affects children aged 1β10 years and is self-limiting, usually resolving within 6β12 months.
π Etiology (Causes):
β Causative Agent:
Molluscum contagiosum virus (MCV) β a DNA virus of the Poxviridae family
β Mode of Transmission:
Direct skin-to-skin contact
Autoinoculation (scratching spreads lesions)
Fomites: shared towels, clothing, toys, gym mats
Swimming pools (common in children)
π¬ Pathophysiology:
Virus infects epidermal keratinocytes.
Stimulates localized hyperplasia β leads to flesh-colored papules.
Each lesion contains infectious viral particles.
Spread occurs via autoinoculation or close contact.
Lesions persist for weeks to months, then resolve spontaneously as the immune system clears the virus.
πΆ Clinical Manifestations:
Small, firm, dome-shaped papules (2β5 mm)
Central dimple (umbilication) is characteristic
Usually painless, sometimes itchy
Most common sites:
Face, trunk, arms, legs
Axillae, groin, behind knees
Lesions may become red, inflamed, or crusted before resolving
Typically 10β20 lesions, but may be numerous in immunocompromised children
π§ͺ Diagnostic Evaluation:
β Clinical Diagnosis:
Based on appearance and distribution of papules
Umbilicated lesions are diagnostic
β Additional Tests (if needed):
Dermatoscopy: reveals central pore with white core
Skin scraping for microscopy (shows molluscum bodies)
Biopsy (rarely required unless atypical or persistent)
π Medical Management:
No treatment is required in most cases, as it resolves spontaneously.
πΉ 1. Watchful Waiting:
Preferred in healthy children
Lesions typically resolve in 6β12 months
πΉ 2. Topical Treatments (if needed):
Cantharidin (blistering agent) β applied by physician
Podophyllotoxin, tretinoin, or imiquimod (stimulate immune response)
Salicylic acid for keratolytic effect
πΉ 3. Physical Destruction (in selected cases):
Cryotherapy (liquid nitrogen)
Curettage
Laser therapy
These may cause pain or scarring and are not routinely recommended for young children.
πΉ 4. Oral Therapy (rare):
Cimetidine or antivirals (used in immunocompromised children or extensive disease)
Ask about itching, scratching, or secondary infections
Inquire about family or school contact with similar rash
π 2. Nursing Diagnoses:
Impaired skin integrity related to viral lesions and scratching
Risk for spread of infection (autoinoculation or to others)
Anxiety (parent/child) about cosmetic appearance or duration
Knowledge deficit about contagiousness and care
π‘οΈ 3. Nursing Interventions:
π§ A. Skin Care:
Encourage gentle skin cleansing
Avoid scratching to prevent spread and infection
Apply moisturizers if skin is dry or irritated
π§Ό B. Infection Control:
Avoid sharing towels, clothes, bath water
Cover lesions with loose clothing or bandage if possible
Exclude from contact sports or swimming pools if lesions are open
π C. Parental Education:
Reassure that the condition is benign and self-limiting
Teach to avoid squeezing or picking at lesions
Explain the possibility of temporary redness as lesions resolve
Monitor for secondary infection (redness, pus, pain)
π 4. Evaluation:
Lesions heal gradually without scarring
No spread to other areas or family members
Parents show understanding of condition and management
No secondary bacterial infection occurs
β Prognosis:
Excellent in immunocompetent children
Most resolve within 6β12 months, some may last up to 2 years
May recur or re-infect others in close contact
Scarring is rare unless lesions are scratched or infected
π¦ Viral Exanthems in Children
(Measles, Chickenpox, and other common viral rashes: Definition, Etiology, Pathophysiology, Clinical Features, Diagnosis, Management, & Nursing Care)
π Definition:
Viral exanthems are widespread skin rashes caused by viral infections, commonly seen in children. They are often accompanied by fever, malaise, and other systemic symptoms.
βExanthemβ = widespread rash, usually arising during acute viral illness.
π Common Viral Exanthems:
Disease
Causative Virus
Rash Pattern
Measles
Measles virus (Paramyxoviridae)
Starts on face β spreads downward; maculopapular
Chickenpox
Varicella-zoster virus (VZV)
Vesicles on red base (βdew drop on rose petalβ)
Rubella
Rubella virus
Faint pink rash, face to trunk, disappears quickly
Roseola
HHV-6/HHV-7
High fever β sudden rash as fever subsides
Erythema infectiosum (Fifth disease)
Parvovirus B19
βSlapped cheekβ appearance β lacy rash on limbs
Stevens-Johnson Syndrome (SJS) is a rare, severe mucocutaneous hypersensitivity reaction, often triggered by medications or infections, characterized by widespread skin blistering, epidermal detachment, and painful mucosal erosions.
SJS is a medical emergency and may progress to Toxic Epidermal Necrolysis (TEN) if >30% of body surface is involved.
Impaired skin integrity related to epidermal necrosis
Acute pain related to skin and mucosal lesions
Risk for infection due to skin breakdown
Deficient fluid volume due to fluid loss from denuded skin
Imbalanced nutrition due to painful oral ulcers
Anxiety (parent/child) due to illness severity
π‘οΈ 3. Nursing Interventions:
ποΈ A. Skin & Mucosal Care:
Handle skin gently, avoid friction or adhesive tapes
Use non-stick dressings and topical antibiotics as prescribed
Provide oral care with gentle swabs and anesthetic mouthwash
Apply lubricants to eyes and consult ophthalmologist
π§ B. Hydration & Nutrition:
Maintain strict intake-output
Administer IV fluids, monitor electrolytes
Offer nutrient-dense fluids; consider enteral feeding if oral intake is inadequate
π C. Infection Control:
Strict aseptic technique
Hand hygiene for all visitors and staff
Isolation precautions if needed
π D. Parental Support & Education:
Explain disease course and critical need for drug avoidance
Encourage emotional support and regular updates
Educate on long-term follow-up (skin healing, eye care)
π 4. Evaluation:
Rash progression halted
Skin lesions healing without secondary infection
Pain effectively managed
Hydration and nutrition maintained
Parents knowledgeable about drug safety and recurrence prevention
β Prognosis:
Mortality in SJS: <5% in children if treated early
Good recovery expected in mild to moderate cases
Long-term complications:
Skin pigmentation changes
Ocular complications (dry eye, corneal damage)
Oral/genital scarring
π Prevention:
Family members may require genetic screening (e.g., HLA-B*1502 in Asians before carbamazepine)
Avoid re-exposure to culprit drug
Wear medical alert ID
π‘οΈ Henoch-SchΓΆnlein Purpura (HSP)
(Definition, Etiology, Pathophysiology, Clinical Features, Diagnosis, Management & Nursing Care in Children)
π Definition:
Henoch-SchΓΆnlein Purpura (HSP) is the most common vasculitis (blood vessel inflammation) in children, affecting the small blood vessels (capillaries). It leads to leakage of blood into the skin, joints, intestines, and kidneys, causing a distinctive purpuric rash, joint pain, abdominal pain, and kidney involvement.
Also known as IgA vasculitis, usually seen in children aged 3β15 years, especially after an upper respiratory infection.
π Etiology (Causes):
The exact cause is unknown, but often triggered by:
Milia are tiny, white or yellowish cysts that commonly appear on the face, especially around the nose, cheeks, chin, and forehead of newborns and infants.
They are benign, painless, and typically resolve on their own without treatment.
π Etiology (Causes):
β Primary Milia (common in newborns):
Caused by trapped keratin (a skin protein) under the surface of the skin due to immature skin development.
β Secondary Milia (less common):
Develop after skin injury, burns, blistering, or use of steroid creams.
Can affect older children or adults.
π¬ Pathophysiology:
Dead skin cells (keratin) get trapped in tiny pores or hair follicles.
This forms small, firm cysts just beneath the epidermis.
Unlike pimples, milia are not caused by infection or clogged oil glands and contain no pus.
πΆ Clinical Manifestations:
1β2 mm in size
White or yellowish papules
Commonly appear on:
Nose
Cheeks
Chin
Forehead
Eyelids
No redness, pain, or itching
Not inflamed, unless irritated
In newborns, often present within first few days after birth and resolve by 3β4 weeks of age.
π§ͺ Diagnostic Evaluation:
Clinical diagnosis based on appearance
No tests required
Differentiate from:
Neonatal acne (may have redness or pustules)
Miliaria (heat rash) (usually more inflamed)
Comedones (in acne)
π Medical Management:
No treatment is necessary for primary milia in infants.
β Supportive Measures:
Gently wash with warm water and mild baby soap
Avoid:
Scrubbing
Picking or squeezing lesions
Use of lotions or ointments unless prescribed
β For persistent or secondary milia (in older children):
Topical retinoids (rarely needed; prescribed by a dermatologist)
Extraction by a trained professional (only if cosmetically needed)
Psoriasis is a chronic, autoimmune, inflammatory skin disorder characterized by red, scaly, thickened patches of skin due to rapid proliferation of skin cells.
Though more common in adults, it can occur in children and adolescents, especially with a family history.
π Etiology (Causes):
β Multifactorial Causes:
Genetic predisposition
Family history of psoriasis
Immune system dysfunction
Autoimmune reaction leads to inflammation and rapid skin cell turnover
Vitiligo is a chronic skin condition characterized by loss of pigmentation (melanin), resulting in white patches (depigmented macules) on the skin and sometimes hair.
It occurs due to the destruction or malfunction of melanocytes (the pigment-producing cells), and while not harmful, it can cause psychosocial distress, especially in children.
π Etiology (Causes):
β 1. Autoimmune Mechanism (most common):
The immune system mistakenly attacks melanocytes.
β 2. Genetic Factors:
Positive family history in up to 30% of cases.
β 3. Neurogenic Factors:
Nerve endings may release toxic substances that damage melanocytes.
β 4. Oxidative Stress or Environmental Triggers:
Emotional stress, skin trauma, sunburn, or exposure to certain chemicals.
Vitiligo is not contagious and is not caused by infections or hygiene issues.
π¬ Pathophysiology:
Melanocytes in the basal layer of the skin are damaged or destroyed.
This leads to complete loss of melanin in affected areas.
The result is well-defined, depigmented white patches of varying size.
Some patches may enlarge or spread, while others remain stable.
πΆ Clinical Manifestations:
Milky-white patches on the skin, commonly over:
Face
Hands and feet
Knees and elbows
Around the eyes, mouth, genitals
Symmetrical or asymmetrical distribution
Premature whitening of hair, eyelashes, or eyebrows (in some cases)
No itching, pain, or scaling
May be more noticeable in dark-skinned children
Emotional distress due to cosmetic appearance
π Types of Vitiligo:
Type
Description
Non-segmental
Bilateral, symmetrical; most common
Segmental
Unilateral, often early-onset, stable
Focal/Localized
Limited to one or few areas
Universal
Extensive, affecting most of the body (rare)
π§ͺ Diagnostic Evaluation:
Clinical Examination:
Well-defined white patches
No scaling or signs of inflammation
Woodβs Lamp Test (UV light):
Depigmented patches glow bright white
Skin Biopsy (rare):
Shows absence of melanocytes
Autoimmune Screening:
May check for associated conditions like:
Thyroid disorders
Type 1 diabetes
Alopecia areata
π Medical Management:
No cure, but several treatments can slow progression and restore pigment.
β 1. Topical Therapies:
Topical corticosteroids: Reduce inflammation and promote repigmentation
Topical calcineurin inhibitors (e.g., tacrolimus, pimecrolimus): For face and sensitive areas
Topical vitamin D analogs (e.g., calcipotriol)
β 2. Phototherapy (For widespread or resistant vitiligo):
Narrowband UVB therapy (2β3 times/week under supervision)
Excimer laser (for small areas)
β 3. Systemic Treatments (severe cases):
Oral corticosteroids or immunosuppressants (limited use in children)
β 4. Surgical Treatments (for stable vitiligo):
Skin grafting
Melanocyte transplantation
Used in older children/adolescents with stable, localized vitiligo.
Urticaria, also known as hives, is a sudden, allergic skin reaction characterized by raised, itchy, red or skin-colored welts (wheals) that may appear anywhere on the body. It may last a few hours to several days, and in some cases, becomes chronic.
Urticaria is common in children and can be acute or chronic, often causing significant itching and discomfort.
Ichthyosis is a group of genetic or acquired skin disorders characterized by dry, thickened, scaly skin resembling fish scales (from Greek βichthysβ = fish). It results from abnormal skin cell turnover or shedding, leading to accumulation of dead skin.
Most forms are inherited (congenital) and appear in infancy or early childhood.
π Etiology (Causes):
β 1. Inherited Ichthyosis (most common):
Type
Features
Ichthyosis vulgaris
Most common, mild form; appears after birth; often improves with age
X-linked ichthyosis
Affects boys; caused by steroid sulfatase deficiency
Lamellar ichthyosis
Autosomal recessive; thick plate-like scales from birth
Harlequin ichthyosis
Severe; thick armor-like skin at birth; life-threatening
β 2. Acquired Ichthyosis (rare in children):
Can develop due to:
Malnutrition
Hypothyroidism
Kidney failure
Certain cancers or medications
π¬ Pathophysiology:
Skin cells (keratinocytes) are produced normally but fail to shed properly.
Dead skin cells accumulate, leading to dryness and thick scales.
In some types, there’s defective lipid production in the epidermis β impaired skin barrier β dehydration and infections.