Disease Description (Causes and Symptoms)
- Definition: An allergic skin disease commonly seen in newborns and infants; the infantile presentation of atopic dermatitis (infantile atopic dermatitis, commonly called “taeyeol”).
- Causes and pathophysiology: Although the exact cause is unknown, it is thought to result from a combination of genetic predisposition, an imbalance in immunological responses, abnormalities in the epidermal skin barrier (e.g., filaggrin), and environmental factors (temperature, humidity, and irritants).
- Main symptoms: Red rashes on the cheeks, forehead, behind the ears, scalp, trunk, and limbs; small, millet-like papules (sometimes vesicles); crusting, oozing, itching; and dry skin (dryness can trigger worsening symptoms). In infants, it commonly occurs on the face and the outer surfaces of the body (extensor surfaces). Fever is absent, but fever and purulent discharge may occur with a secondary bacterial infection.
- Diagnosis: Diagnosis is mainly based on clinical findings (lesion location and appearance, age at onset, and family history). If necessary, supplementary tests such as serum IgE testing, allergy testing, and minor skin biopsy may be performed.
Treatment Methods
- Basic principles: Maintain skin moisturization (preventive care) + control inflammation during acute exacerbations
- Moisturizers and bathing care
- Bathing in lukewarm water at approximately 25°C for no more than 10 minutes is recommended.
- Apply a moisturizer (lotion, cream, or oil) within 3 minutes after bathing.
- Maintain indoor humidity at approximately 50–60%.
- Wear minimally irritating cotton clothing, and ventilate and wash the skin immediately if sweating occurs.
- Topical medications
- For acute inflammation (redness and scratching), use a low- to low-moderate-potency topical corticosteroid (a low-potency preparation for children) for a short period. For the face and areas around body openings, strictly follow the physician’s instructions regarding the choice of medication and duration of use.
- If necessary, a topical immunosuppressant (e.g., 1% pimecrolimus) may be used, as determined by a healthcare professional according to age and indication.
- Systemic treatment
- For severe itching and sleep disturbance, short-term use of an antihistamine may be considered after checking age and medication safety.
- If a secondary bacterial infection occurs (erythema, pus, or systemic symptoms), administer an appropriate antibiotic.
- In rare cases of severe, refractory disease, a dermatologist may consider phototherapy or systemic medications (immunosuppressants).
- Behavioral and environmental management
- Avoid skin irritation and keep the nails short to minimize scratching (the use of mittens is recommended).
- Breastfeeding is recommended whenever possible (if symptoms are suspected to be related to an infant’s food, consult a specialist).
- Precautions (points to note, risk of complications, and considerations for self-care)
- When using topical steroids, follow the physician’s instructions regarding the type, potency, and duration of use (be alert to the side effects of excessive steroid use).
- Seek medical attention promptly if a secondary infection is suspected (fever, pus, or rapid worsening).
- Medications such as antihistamines and topical immunosuppressants have age-related restrictions on use, so always consult a healthcare professional.
- Prognosis: With appropriate management, symptoms often improve within the first year of life, but some cases may become chronic and progress to an atopic predisposition.
Checklist Before an Outpatient Visit (Including Example Questions)
- Items to prepare
- A list and photographs of currently used medications (including skincare products), with product labels included.
- Past medical history and whether family members have a history of allergies, asthma, or atopic dermatitis.
- A record of when symptoms began and factors that worsen or improve them (meals, bathing, clothing, indoor environment, etc.).
- Photographs of the rash (take them periodically to compare changes).
- Sleep and feeding patterns (breast milk, formula, and solid foods) and weight-gain trends.
- Useful information to provide during the visit
- The exact locations and extent of the rash, whether discharge (pus or fluid) is present, and whether there is a fever.
- Previously used medications and ointments (product names and duration of use) and the response to them.
- Example questions (sentences to explain to the doctor during the consultation)
- “When did the rash start, and what makes it worse?”
- “What products did we use at home, and did the symptoms change after using them?”
Examples of General Questions to Ask the Doctor
- What are the expected effects and possible side effects of this medication (or ointment)?
- When do you expect the symptoms to improve? What is the long-term prognosis?
- What lifestyle habits are most important, and what should we avoid, when caring for the skin at home?
- What signs of worsening symptoms (emergency signs) mean that we should come to the hospital immediately?
Examples of Condition-Specific Questions
- If a steroid ointment must be used on sensitive areas such as the face or neck, what potency and duration of use are safe?
- Can we continue using the moisturizer currently in use (product name), or are there more recommended formulations or ingredients (such as cream versus oil)?