Elderly people or patients who are bedridden for a long time due to illness may have red skin, most often on the sacrococcygeal region. The causes of this phenomenon can be broadly divided into two types: one is due to prolonged pressure on the skin, which may develop into a pressure sore; the other is incontinence dermatitis due to incontinence or other moist causes. When encountering this condition, it needs to be properly identified and treated in different ways. For the layperson, if you find red skin, you can look for the presence of damp skin as a factor, and if not, you can generally determine that it is a pressure sore. However, it should be reminded that because there are differences in color, shape, and etiology, identification is difficult and usually requires the judgment of a professional stoma wound nurse, and those who are able to do so should seek professional help to identify them. So what should be done about the different causes of skin redness? (a) Skin pressure, if the skin is only red, without blistering, skin integrity damage or more serious symptoms, the following can be done: 1. Avoid continuous pressure on the red parts, turn more often, the frequency of turning varies from person to person, assist in turning, should lift the body, minimize friction and shear force, avoid dragging, pulling, dragging. 15 minutes of skin redness does not subside, turning time should be shortened, pressure red does not subside is contraindicated massage. 2, support surface. Economic conditions allow the use of air cushion bed. Use the air mattress bed at the same time still need to turn more. 3. Skin care. Keep the skin clean, can apply body lotion etc. to keep the skin moderately moist. 4. Dressing. Those at high risk of pressure sores can choose preventive dressings such as foam dressings, hydrocolloid dressings, transparent dressings and liquid dressings. 5. Enhance nutrition. (b) For skin redness caused by incontinence or other moisture, the following can be done: 1. Clean the skin around the redness, using an acidic cleanser (pH <6.5< span=""> or lower) if available, not soap solution (soap solution is alkaline), and gently wipe the skin of the red area (soak for 1 to 2 minutes, do not scrape) and then apply a skin protectant (e.g., dimethicone oil, petroleum jelly) to keep the skin clean. Vaseline), keep the skin clean and appropriate humidity. 2. Make the skin breathable and reduce the bedding under the skin. 3.Treat incontinence. The prevention and treatment of pressure sores and incontinence dermatitis is a complex and specialized process, and professional help should be sought promptly if the above does not improve.