Piyanping can be used to treat dog skin diseases, because the main component of Piyanping is dexamethasone acetate, which is a glucocorticoid drug. It is mainly used for allergies, dermatitis, etc. It can treat dog skin diseases, but it cannot long-term use. If the use of Piyanping has no effect, you should go to the hospital immediately to check the source of the disease and then treat it symptomatically to avoid delaying the condition. There are many types of dog skin diseases, generally classified into mite, fungal, bacterial and dermatitis. When treating dog skin diseases, it is best to use symptomatic medication to prevent the seriousness of the disease.