Snake skin on the legs is also known as common ichthyosis. This disease is caused by autosomal dominant inheritance and is mostly accompanied by dry skin surface, so moisturizing treatment is especially important and can be done by applying blue rinse ointment or topical spraying of blue ke skin spray. Applying tacrolimus ointment or pimecrolimus cream after application can have a good anti-inflammatory and immunosuppressive therapeutic effect. If blood scabs or scratches appear after scratching, apply a topical wet application of compound Phellodendron japonicum dispersant 2 times/day for 20 minutes/time. Avoid washing the affected area with hot water, you should apply glycerin or petroleum jelly oil regularly to enhance the moisturizing effect of the skin, and avoid eating spicy and stimulating foods during the treatment period.