Dermatitis is usually caused by allergy, infection, immunity, heredity and other factors. Commonly used methods include general treatment, medication (e.g. Dinaid ointment, Mupirocin ointment) and so on. 1. General treatment: Dermatitis should pay attention to keep the skin clean, do not scratch, and keep away from related allergic substances and undesirable stimulating substances. 2. Medication: Topical glucocorticoid drugs, such as hydrocortisone butyrate, dieldrin ointment, etc., can help to relieve skin inflammation; if accompanied by infection can also be used topically anti-infective drugs, such as mupirocin, fusidic acid and other topical ointment. Symptoms of a large area can also be combined with oral antihistamines, such as loratadine, etc., can reduce itching, while relieving allergies. It is recommended that patients go to the regular hospital in a timely manner, under the guidance of the doctor, to take targeted treatment, strictly comply with the doctor’s instructions for medication, life should pay attention to skin cleaning, avoid skin damage.