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. Preventive measures for diffuse nasal flushing: 1, pay attention to avoid cold and heat stimulation, avoid emotional excitement, mental tension. 2, keep the bowel movement smooth. The lungs and the large intestine are the epithelium, the stool does not work, the lung fire more vigorous. 3, should not be in the summer, high temperature, hot and humid environment long-term living or work. 4, keep the skin clean and hygienic. For oily skin should often wash with soap and warm water; for dry skin should use less soap. Also do not wash with alkaline soap. 5.Prohibit scratching, scratching, peeling and squeezing in the nose lesion area to prevent infection. 6.Prohibit the use of irritating cosmetics. 7.Before each dressing, wash your face with warm water and use a dry towel to absorb the water stains after washing. 8.Keep the skin elastic. In the cold season, apply emollients to the skin frequently to keep the skin elastic and soft and reduce skin cracks. 9.Clean nails. Nails should be trimmed often and remove dirt under the front of the nail. 10, protect the skin. Even if there is a small break in the skin, it should be dealt with in a timely manner; the skin that has been infected should be protected on the basis of attention to cleanliness and proper isolation to prevent contact with infection; the pruritic skin should be prevented from secondary infection caused by scratching on the basis of active treatment; in summer, prickly heat is a harbinger of skin infection, so it is vital to prevent and treat prickly heat. 11, enhance physical fitness, keep a happy spirit, pay attention to exercise, reasonable nutrition, improve muscle immunity, improve health status is also very important.