The scientific name for “red nose” is rosacea, also known as rosacea, and it looks a bit like a clown in a circus. Most patients do not have any obvious discomfort, but it affects their aesthetics. This disease is mostly seen in middle-aged people, especially women, the onset of the disease is slow, the beginning of the performance for the nose paroxysmal temporary erythema, when the time to eliminate, in eating some stimulating food, cold wind, sun or emotional changes are easy to trigger or aggravate, over time, the erythema will continue to not go away, the tip of the nose, nose and cheeks can be appeared in “red blood” (capillary dilatation). Capillary dilatation) may appear on the tip of the nose, nose wings and cheeks. After a few years, on top of the erythema, small red bumps and pustules appear, often one after another, and the erythema becomes more obvious. After a few years or a decade, the sebaceous glands at the end of the nose merge with connective tissue hyperplasia, and the tip and wings of the nose become enlarged, forming nodular or tumor-like protrusions, unevenness, enlarged pores, and thicker red blood. This type of severe rosacea is mainly seen in advanced male patients. The cause of rosacea is not yet fully understood, and is related to constitution and heredity. Traditional Chinese medicine believes that it is due to the accumulation of heat in the lungs and stomach, which over a long period of time transforms into fire, and the heat of the blood in the lung meridian, which is caused by fumigation on the upper part of the lung. Modern medicine believes that it may be due to some internal and external environmental factors that trigger facial vasomotor nerve disorders, capillary dilatation for a long time. Promoting and aggravating factors 1, whether the skin is greasy is not important. 2, Trichinella infection is one of the factors in the development of rosacea, but not the only factor. 3, alcoholism, spicy food, high temperature, sun exposure, cold, mental factors, gastrointestinal dysfunction, endocrine disorders, as well as the presence of infected foci, etc. are promotional and aggravating factors. Rosacea is often difficult to cure for many years, sometimes light and sometimes heavy, affecting the aesthetic appearance. If you have perseverance and patience in the treatment and pay attention to the care and regulation of daily life, this disease can be effectively controlled and cured. The prevention of rosacea is more important than the treatment. Those who are prone to redness of the nose should avoid the above triggering and aggravating factors related to themselves, so that rosacea can be controlled in the initial mild stage. If it has developed to the stage of pimples, pustules or even nasal flab, it is still necessary to avoid the relevant triggers to avoid further aggravation, and at the same time, you can take tetracycline or memantine, mephenhydramine, vinclofenac type of drug orally, etc; and externally, use mephenhydramine cream and thiessin cream. Hormone-containing drugs can cause facial capillary dilation. Should be avoided. In recent years, the use of dye pulse laser treatment of capillary dilatation has achieved significant efficacy, and after the disappearance of capillary dilatation, nasal congestion will also be reduced. At present, Chinese medicine has also achieved remarkable efficacy in the treatment of rosacea, and Chinese medicine treatment is based on clearing heat, cooling blood and expectorating phlegm. For those who have accumulated heat in the lung and stomach, equivalent to the erythema stage, the method of clearing the lung and stomach and dispersing the accumulated heat is applied; for those who have heat and toxicity, equivalent to the papule stage, the method of cooling blood and activating the blood, clearing heat and detoxifying the toxin is applied; for those who have stagnation of qi and blood stasis, equivalent to the nasal redundancy stage, the method of activating blood and removing blood stasis and dispersing the knots is applied. In short, patients should have an understanding of this disease, strengthen the prevention, early treatment.