Mild cases of atopic dermatitis can resolve spontaneously after the allergens are identified and removed from the body, but moderate to severe cases of atopic dermatitis still require pharmacological intervention. When the symptoms of atopic dermatitis are mild, it is possible for it to heal itself, especially when the allergens are clear, and the patient’s symptoms can improve on their own when the allergens are removed, i.e., it is self-healing. However, the allergens of most patients are not clear enough to be removed, and if no anti-allergy medication is administered, the symptoms of atopic dermatitis will persist and worsen, ultimately resulting in secondary infections and other adverse consequences. Some patients with persistent symptoms will also form chronic inflammation, resulting in skin pigmentation, etc., so it is necessary to actively carry out the treatment, do not blindly wait for self-healing. Allergic dermatitis treatment means mainly external glucocorticoids such as dexamethasone ointment, oral antihistamines such as loratadine, etc., if necessary, can also use immunosuppressants and biologics, etc., the specific types of drugs and dosage selection need to consult a professional doctor, under the guidance of the doctor to use.