Eczema, Food Allergy and Hives

🧴Understanding atopic dermatitis

Atopic dermatitis (eczema) is a chronic skin condition in which itchy, dry patches improve and flare again and again. The skin barrier is weak, so moisture escapes easily and irritants get in. In infancy it tends to appear on the cheeks, forehead, scalp and the outer arms and legs; after walking age and into school age it favors skin folds such as the inside of the elbows and the back of the knees.

The core problem is the itch–scratch cycle: itching leads to scratching, which makes the rash worse. Many children improve as they grow, but the more severe the eczema, the more likely food allergy, asthma or allergic rhinitis are to come along, so steady care matters. Get a diagnosis and treatment plan from a pediatrician or dermatologist.

🛁Everyday basics

• Apply moisturizer generously at least twice a day, and keep going after the skin improves.
• Keep baths short and lukewarm. Use a gentle cleanser only where needed and do not scrub.
• After bathing, pat the skin dry with a towel and apply moisturizer right away, before the skin dries out.
• Dress your child in soft, breathable fabrics such as cotton, and avoid overheating.
• Keep nails short to reduce scratch wounds.
• Use anti-inflammatory creams (such as steroid ointments) exactly where, how often and for as long as the doctor says. Using too little out of fear, or stopping on your own, often makes the rash last longer.
• Do not cut foods out of your child's diet without talking to a doctor; growing children can end up short of nutrients.

🥚Food allergy

Common triggers in young children include egg, milk, wheat, peanut, tree nuts, soy, fish and shellfish. Symptoms such as hives, swelling around the lips or eyes, vomiting or coughing usually appear within minutes to two hours of eating.

A positive blood or skin-prick test does not always mean a true allergy. If your child has been eating a food without problems, do not stop it based on a test result alone. A doctor looks at what happened after eating together with the test results and, if needed, confirms with an oral food challenge in hospital, giving small amounts step by step. Milk and egg allergies are often outgrown; peanut and tree-nut allergies tend to last, so regular re-evaluation is recommended.

The order of introducing new foods and allergy prevention are covered on the solid-food page. After a diagnosis, check allergen labels on packaged foods, and give daycare or school written details of the allergy and what to do.

🔴Hives

Hives are raised, itchy red welts — like mosquito bites — that come and go and move around within hours. Sudden hives in children often follow a viral infection such as a cold; foods, medicines and insect stings can also cause them, but often no cause is found.

If breathing and swallowing are easy and your child is playing normally, you can ease the itch and watch. Keep the skin cool and discourage scratching. For anti-itch medicine, ask a doctor or pharmacist for one suited to your child's age and weight. Write down any new foods or medicines and mention them at the visit. Hives that keep coming back for more than six weeks may be chronic hives — see a doctor.

🚨Anaphylaxis — call 119 now

Anaphylaxis is an emergency in which an allergic reaction spreads rapidly through the body. It can start without any skin symptoms. If you see any of the signs below, do not wait — call 119 immediately (Korea's emergency number).

• Difficulty breathing, wheezing, or persistent coughing
• Complaining of a tight throat, a hoarse voice, or trouble swallowing
• Rapid swelling of the tongue, lips or face
• Repeated vomiting or severe stomach pain
• Turning pale, going floppy, or becoming drowsy or confused
• Hives plus any of the above after eating a known allergen

📝Being prepared

• Once an allergy is diagnosed, make an allergy action plan with the doctor listing foods to avoid, what to do for each symptom, and emergency contacts.
• Share the plan with everyone who cares for your child — daycare, kindergarten, school, grandparents.
• When eating out or traveling, ask about ingredients and always carry any prescribed medicine.
• Photos of symptoms plus notes on what was eaten and when are very helpful at appointments.
• As your child grows, practice saying "I can't eat that" and asking for help.

💬FAQ