Itchy skin may be infectious, physical, allergic, herpes and other dermatologic diseases caused by the need for the cause of drug or physical therapy, there is no rapid itch relief methods. 1. For infectious dermatosis, such as folliculitis, you can follow the doctor’s instructions to use 20% ichthyolite ointment, oral amoxicillin and other antibiotics, etc.; can be combined with physical therapy, can promote the inflammation subside. 2. For physical skin diseases, such as prickly heat, you can follow the doctor’s instructions to use glycerin lotion, apply prickly heat powder, oral antihistamine such as loratadine. 3. For allergic dermatosis, such as contact dermatitis, oral antihistamine such as cetirizine and glucocorticosteroid such as prednisone can be taken as prescribed by the doctor. 4. For herpetic dermatosis caused by, such as herpetic pemphigoid, can be prescribed topical glycerine lotion, oral prednisone and other glucocorticoids, cyclophosphamide and other immunosuppressants. It is recommended that people with itchy skin go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.