Diabetic wounds rot, difficult to heal need to control blood sugar on the basis of timely medical care, under the guidance of the doctor to clarify the cause of the disease, and then for the cause of the treatment, regular medication changes. 1. Control blood sugar: high blood sugar leads to vasculopathy microcirculation disorder, need to regularly take metformin, acarbose and other hypoglycemic drugs, control blood sugar at the normal level, is to ensure that the basis of wound healing. 2. Regular dressing change: pay attention to whether the wound is red, swollen and overflowing with pus, change the dressing regularly to help local tissue growth and promote wound healing, and when the infection is serious, negative pressure suction treatment can be carried out under the guidance of the doctor. It is recommended that diabetic patients go to regular hospitals in time when their wounds are not healing, improve relevant examinations under the guidance of the doctor and standardize the treatment, so as not to delay the condition.