Itchy rotten feet may be caused by tinea pedis, eczema, diabetic foot and other diseases, which can be improved by general treatment, medication or surgery. 1. Tinea pedis: often caused by fungal infection, can lead to foot erythema, papules, erosion with itching. At this time, the first thing to pay attention to foot hygiene and wash shoes and socks, and at the same time, follow the doctor’s instructions to use ketoconazole cream, miconazole nitrate cream and other drugs, serious cases also need to follow the doctor’s instructions to oral itraconazole and other antifungal drug treatment. 2. Siltation eczema: often occurs in the lower extremities of varicose veins and other patients with abnormal vascular function structure, can be manifested as skin erythema, scaling, edema, ulceration, accompanied by itching. Early stage of the disease can be improved by elevating the affected limbs, wearing compression stockings, etc. When it is serious, it is necessary to give surgical treatment of varicose veins such as high stripping ligation under the guidance of doctors. 3. Diabetic foot: Due to the abnormalities of vascular and nervous system caused by diabetes, foot ulcers, itching and other symptoms appear. Patients need to monitor blood sugar in time and apply metformin, acarbose, insulin and other drugs to control blood sugar under doctor’s guidance. In case of serious infection with tissue necrosis, leading to dysfunction, surgical amputation should be performed according to doctor’s instruction. In addition, cold and dry in winter, resulting in local blood supply abnormalities such as frostbite, foot ulcers, itching, etc., patients need to pay attention to warmth, while the application of vasodilator drugs and other treatments. Foot rotting off with itching may also be caused by other diseases, it is recommended that patients go to regular hospitals in a timely manner to improve physical examination, blood tests and other ancillary tests to clarify the diagnosis, under the guidance of the doctor standardized treatment.