It can be treated with topical medications, such as vincristine ointment, adapalene gel, imiquimod, or zebularin cream, etc.; 2. Papular urticaria: due to allergic reactions after insect bites, patients can take oral antihistamines, such as benadryl, chlorpheniramine, etc., while using topical glycolic lotion to effectively relieve itching; 3. Eczema: often surface as small papules, papules, and small blisters, and fused into patches, often accompanied by It is often accompanied by pronounced itching. The treatment can be oral loratadine or cetirizine hydrochloride, topical zinc oxide cream, pimecrolimus cream treatment, severe cases can be short-term topical glucocorticoids such as mometasone furoate or hydrocortisone butyrate cream; 4, contact dermatitis: inflammatory reactions that occur after direct contact between the skin and external animal, plant or chemical irritants or allergens. It is necessary to find the cause of the disease, timely removal of suspected irritants or allergens, and anti-allergic and anti-inflammatory treatment can be carried out, the treatment of drugs with eczema. If the situation is difficult to control, you need to go to the hospital in time for examination to clarify the cause and then treat the symptoms. Minimize the intake of fried and spicy foods and avoid eating foods that may trigger allergies.