The medicines used to treat skin diseases are mainly based on the type of skin disease. Skin diseases can be broadly categorized into allergic diseases, viral and fungal. 1. Allergic skin diseases: Desensitizing drug treatment is mainly based on desensitizing drugs, such as loratadine, chlorpheniramine, compound glycyrrhizin, cetirizine or levocetirizine hydrochloride, etc. Glucocorticosteroids can be added in serious cases, such as prednisolone, methylprednisolone and dexamethasone. 2. Viral skin diseases: anti-viral drugs such as ganciclovir, acyclovir, famciclovir, penciclovir or valaciclovir are needed. 3. Fungal skin disease: the use of antifungal drugs, such as topical ketoconazole, miconazole, clotrimazole ointment, if the condition is more serious can be taken orally, such as terbinafine, fluconazole, itraconazole and so on. If you have a skin disease, it is recommended to go to the hospital in a timely manner, by the doctor to make a clear diagnosis, to develop a reasonable program, the drug should be used in accordance with the doctor’s instructions.