“The cause of atopic dermatitis, also known as atopic eczema, is complex and generally related to genetic and environmental factors. Children often have congenital allergies and develop skin symptoms after irritation from exposure to allergens. Child patients are mostly associated with food allergens, such as milk, eggs, fish, shrimp and other proteins, and also dust mites, bacteria, fungi, pollen, animal fur, etc. can be allergens. The manifestations of atopic dermatitis are different in infancy, childhood and adulthood. In childhood, the main manifestations are pinpoint papules, papules and small blisters, fused into patches, relatively dry, with white flaking on the surface, mild mossy skin, and also post-exudation and crusting; skin damage mostly appears in the elbow fossa, knee fossa and both lower legs, with intense itching, more severe at night. Along with these manifestations, the child may also have allergic rhinitis, urticaria, and asthma. Parents of children with atopic dermatitis should pay attention to the following points in their lives: 1. Avoid foods that cause allergies, especially eggs, cow’s milk, wheat flour and seafood such as fish and shrimp. 2. Remove allergens from the environment: reduce the number of stuffed toys or feathers in the home environment; do not install curtains or lay carpets; do not have too high humidity; chemicals such as detergents, laundry detergents, detergents and disinfectant water should not come into direct contact with the child’s skin; try to remove dust and debris from the home; if you are allergic to animal hair (such as dog hair, cat hair, feathers, etc.), it is not suitable to keep dogs, cats and pets. Pets such as birds. 3, children with long-term scratching skin is prone to bacterial, viral or mold infection, and once the infection is often more serious and spread rapidly, we must pay extra attention. The best choice of clothing is loose, soft cotton clothing, even bedding, furniture decoration, etc. should try to avoid skin irritation. The first thing to do is to try to find the cause of the allergy and remove it, but it is generally difficult to do; the second thing is to replenish the moisture of the skin and apply moisturizers to restore the normal barrier function of the skin. Topical medications are commonly used in hormonal creams, such as hydrocortisone butyrate cream and mometasone furoate cream. In recent years, a non-hormonal topical drug (tacrolimus ointment and pimecrolimus ointment) has been used to treat atopic dermatitis with very good results. Some antibiotics (topical or oral) can also be used in combination to inhibit the growth of Staphylococcus aureus on the surface of the lesions. Oral antihistamines (e.g., Benadryl) and sedatives (e.g., Luminal) can be given to desensitize and stop itching. For persistent, severe cases, systemic treatment with corticosteroids is required. Although there are still great difficulties in completely curing atopic dermatitis, most children can usually control the progression of the disease in about 3 weeks with the active treatment by the doctor and full cooperation of the parents.