Diseases that can cause itchy skin mainly include urticaria, eczema, insect bite dermatitis and contact dermatitis, etc. The main way to eliminate itchy skin as soon as possible is to give anti-allergy and anti-itch treatment. 1. To improve the itchy skin caused by urticaria, generally take oral anti-allergic drugs, such as oral loratadine tablets, cetirizine capsules, ebastine tablets and so on. When the symptoms are severe, intravenous or intramuscular medication can also be given to improve the itching symptoms, such as dexamethasone injection, methylprednisolone succinate for injection. 2. To improve the itching caused by eczema, topical and oral medications, such as topical dronederma cream and oral dicloxacillin tablets, are usually used. 3. Improve the itching caused by insect bite dermatitis, mainly with local topical drugs, such as topical fluoride acetate easy ice cream, glycerite lotion, and so on. In severe cases, oral loratadine and other drugs. 4. To improve the itchy skin caused by contact dermatitis, the first step is to wash the skin to keep the local clean, and at the same time, local topical treatment with some anti-allergic drugs, such as danpi phenol cream. Due to individual differences in treatment effects, the specific situation requires a doctor’s consultation. Please strictly follow the doctor’s instructions, do not self-medicate.