Diabetic patients with substandard blood glucose control can develop itching in the following areas: 1. itching of the skin around the body. 2. itching of the vulva in female patients. 3. itching of the hands and feet in patients with combined ringworm and tinea pedis. Diabetic patients who do not meet the blood sugar control standards for a long time are prone to diabetic skin lesions, which manifest as dry and flaky skin and itchy skin around the body, manifesting as unbearable itching, and require blood sugar control and application of anti-allergy drugs for symptomatic anti-itch treatment. Diabetic women with substandard blood glucose control are prone to combined fungal vaginitis treatment and need to be given antifungal medication as well as aggressive blood glucose control treatment. For diabetic patients with tinea cruris and tinea pedis, topical fungal monitoring is required. If fungal spores are detected, fungal infections are proven to exist and antifungal medications need to be given along with aggressive blood glucose control.