Question 1: What kind of skin disease do I have? A: According to statistics, about 30% of diabetic patients can have secondary skin disorders, some of which are diabetes-specific, but most of which are non-specific, meaning that they are not skin diseases that diabetics also suffer from. Your current blood glucose control is fair and has little effect on the skin disease. Without seeing the specific skin manifestations, it is difficult to determine the nature of the disease. According to your description analysis possible diagnosis is considered as psoriasis or lichen planus or skin amyloidosis, but it is better to ask a skin specialist for diagnosis. Chinese medicine generally identifies blood heat and wind or blood deficiency and wind dryness, which can be treated according to your other manifestations and tongue and pulse. Question 2: Why do I always have numbness in my hands and feet? A: The most common chronic complication of diabetes is peripheral neuropathy (DPN). Usually the distal type symmetrical polyneuropathy is manifested by abnormal sensation, such as coldness, numbness, swelling, tightness in small shoes, burning sensation at the end of the limbs, and even hyperalgesia, loss of sensation and the occurrence of various accidental injuries to the limbs without my knowledge, forming ulcers, such as the presence of limb vascular stenosis, ischemia is more likely to cause limb necrosis, gangrene, the so-called diabetic foot. The treatment effect of some DPN is indeed not ideal. The general treatment principles are: 1) strict blood sugar control; 2) improvement of vascular circulation, such as prostaglandin; 3) nerve nutrition, such as methylcobalamin; 4) antioxidants, such as alpha-lipoic acid; 5) Chinese medicine treatment, mostly using a combination of internal and external fumigation of Chinese herbs to benefit the qi and nourish the yin and activate blood circulation. We suggest you to: 1) check HbA1c to determine the control of blood sugar; 2) conduct electromyography and evoked potentials to clarify the location and degree of nerve damage; 3) treat with integrated Chinese and Western medicine in endocrinology.