Diffuse flushing at the end of the nose is one of the symptoms of rosacea. Rosacea, also known as rosacea, rosacea, wine (chappy) nose, rosacea, etc. The cause of diffuse flushing at the end of the nose is not well understood probably due to the dysfunction of the capillaries in the affected area due to dysfunction of the vasodilatory nerves for a long time on the basis of seborrhea and the action of various harmful factors inside and outside the body. Alcoholism, smoking, irritating diet, digestive tract disorders, endocrine dysfunction (especially during menopause), mental factors, focal infections, cardiovascular disease, intestinal parasites, long-term hot and cold factors acting on the skin such as high temperature work, sun and cold, wind, etc. can trigger and aggravate the disease. Prevention of diffuse flushing at the end of the nose: 1, pay attention to avoid cold and heat stimulation, avoid emotional excitement, mental tension; keep the bowels unrestricted. The lungs and the large intestine are cousins, and if the stool does not pass, the lung fire will be more vigorous; it is also very important to strengthen the body, keep the spirit happy, pay attention to exercise, reasonable nutrition, improve the immunity of the body, and improve the health condition. 2, maintain skin elasticity. In the cold season, often use emollients on the skin to keep the skin elastic and soft and reduce skin cracks; clean nails. Nails should be trimmed frequently and dirt under the front of the nails should be removed; before each dressing, wash your face with warm water and use a dry towel to absorb the water stains after washing; irritating cosmetics are prohibited. 3, should not live or work in summer, high temperature, hot and humid environment for a long time; prohibit scratching, scratching, peeling and squeezing in the nose lesion area to prevent infection; keep the skin clean and hygienic. For oily skin to wash often with soap and warm water; for dry skin should be less soap. At the same time, do not use alkaline soap to wash. 4, protect the skin. Even if there is a small break in the skin, it should be dealt with in a timely manner; for infected skin, attention should be paid to protection based on cleanliness and proper isolation to prevent contact with infection; for itchy skin, active treatment should be based on preventing secondary infection caused by scratching; in summer, prickly heat is a harbinger of skin infection, so it is vital to prevent and treat prickly heat.