Dry skin on the back of the foot, peeling corns hard may be caused by physiological factors such as dry climate, but also may be due to tinea pedis, palmoplantar keratosis and other diseases. Patients can take general treatment, medication and other improvements. 1. physiological factors: for the climate is too dry caused by the dorsum of the feet skin dry off skin keratin hard crowd, it is recommended to pay attention to the local skin cleaning, can be appropriate to apply petroleum jelly or urea cream and other moisturizing products, with moisturizing, emollient effect, help to improve the local symptoms. 2. Tinea pedis: For tinea pedis caused by the back of the foot skin dry off skin keratin hard, patients need to maintain local hygiene, wear loose comfortable shoes and socks. You can follow the doctor’s instructions to apply local antifungal drug treatment, such as miconazole, ketoconazole, etc., has a strong bactericidal effect. You can also use salicylic acid ointment and other exfoliators to dissolve the keratin. 3. Palmoplantar keratosis: If palmoplantar keratosis is caused, patients need to strengthen foot care, treatment can follow the doctor’s instructions for the external use of keratolytic agents, such as salicylic acid ointment, urea ointment, etc., to enhance the role of stratum corneum hydration. There are many reasons for the dry skin on the back of the foot to fall off the skin keratin hard, in the exclusion of physiological factors, the patient can go to the hospital to clarify the cause of the disease.