If you feel that your nose is red and swollen and hard, you may be suffering from rosacea. Rosacea may be related to the following factors: 1, bad diet, such as long-term spicy food; 2, with mental factors, such as excessive work pressure, long-term mental tension; 3, with the work environment, work for a long time in a hot and humid environment is also susceptible to rosacea. Do not be nervous if you have rosacea, rosacea is generally not contagious and not malignant, and there will be no other complications. For the treatment of rosacea, first remove the above causes, often eat light food, keep a relaxed mood, do not work for a long time in a hot and humid environment, and often use warm salt water to clean the nose. If it does not heal for a long time, it can also be treated with Chinese medicine, Chinese medicine, internal Chinese medicine and acupuncture treatment, can play a very good effect.