The causes of skin eruptions may be pressure sores, diabetes, vascular factors, etc. They can be treated by anti-infection and blood sugar control. 1. Pressure sores: long-term pressure on the body can lead to blood circulation obstruction, skin and subcutaneous tissue ischemia produces blisters, breakouts, commonly found in long-term bedridden or mobility impaired patients. It is common for patients who are bedridden or have mobility problems. They can turn over and change postures diligently, and when there is infection, antibiotic treatment is needed, together with phototherapy, and debridement treatment if necessary. 2. Diabetes: diabetic patients with poor glycemic control, there may be skin sores, clinically more common for diabetic foot, should pay attention to blood sugar control, clinically commonly used hypoglycemic drugs, including insulin, metformin, etc., and can be treated with surgery if necessary. 3. Vascular factors: such as varicose veins, vasculitis, etc., may be due to part of the skin tissue ischemia, which leads to skin ulcers, at this time should pay attention to the prevention of infection, and for the cause of treatment. There are many reasons for skin sores, if there are skin sores, you should consult a doctor in time for examination and treatment according to the cause.