Diabetic patients are prone to complications such as diabetic vasculopathy and diabetic neuropathy when their blood sugar is poorly controlled. Diabetic neuropathy can be manifested as generalized itching of the skin and abnormal sensation at the end of the extremities and other symptoms. When diabetic patients have generalized itchy skin, they should do the following: 1. Strictly control blood sugar, good control of blood sugar is the most important link to delay the occurrence and development of diabetic complications. 2. Treat diabetic peripheral neuropathy with drugs that improve circulation, nerve-nourishing vitamin B1, B12, etc., and also anti-oxidative stress treatment. 3. Use some anti-allergy drugs appropriately The patient should reduce the number of baths, avoid the use of irritating toiletries, apply moisturizing skin cream after bathing if necessary, and reduce foods or drugs that may cause allergies, etc.