Rosacea is a chronic skin disease characterized by erythema, papules, and capillary dilation that occurs in the center of the face, mainly on the tip of the nose and nose, followed by the cheeks and forehead. The lesions are symmetrically distributed and are often complicated by acne and seborrheic dermatitis. It occurs mostly in middle-aged people between 30 and 50 years old, and is more common in women. There are no obvious self-conscious symptoms. Etiology: not very clear, probably based on oily skin, due to certain internal and external environmental factors that cause vasomotor nerve disorders in the face, vascular dilation for a long time, alcohol, spicy food, high temperature, cold, wind and sun, mental stress, endocrine disorders, gastrointestinal dysfunction and chronic lesions, etc. are all contributing and aggravating factors. In addition: hair follicle mites (helminths), also an important pathogenic factor. Diagnostic points: 1. Age of onset: Most of them are female. 2. Site of onset: The disease occurs in the central part of the face, especially in the nose, cheeks, between the eyebrows and jaw, and there are usually no conscious symptoms. 3, clinical typing: divided into three stages, but there is no obvious boundary between the three stages. (1) Erythema phase: flushing on the nose first, then involving the cheeks, between the eyebrows, chin, symmetrically distributed, erythema is temporary at first, occurring when eating hot and spicy food, exercise, hot and cold stimulation or mental tension, emotional impulse. After repeated episodes, the erythema gradually turns into persistent erythema, and at the same time, filiform capillary dilation appears on the tip of nose and cheeks, with dendritic distribution. It is accompanied by enlarged pores, increased seborrhea, and obvious oily skin. After several months or years, it progresses to the second stage. (2) Papular pustular phase: On the basis of erythema, papules, pustules and nodules appear on the nose, cheeks and chin, while capillary dilation on the nose, nasolabial groove, nasal cheek groove and cheeks is more obvious, longitudinal and transverse, and pore enlargement is more obvious, the rash is often aggravated before menstruation in female patients, and the rash is sometimes light and heavy for several years or longer. (3) nasal superfluous stage: the most serious stage of rosacea, nasal sebaceous glands and connective tissue hyperplasia, nasal tip nasal hypertrophy, the formation of purple-red nodular or strawberry-like bulge, the surface is uneven to form nasal superfluous. At this stage, the pores are obviously enlarged, the sebaceous glands secrete vigorously, and the capillaries dilate significantly. Treatment: 1, erythema period: sebaceous gland secretion, vitamin supplementation, get rid of suspected worm mite infection, reduce capillary dilation, you can give facial cleanser, sulfur preparations, Celebrex, metronidazole gel, etc. 2, papule pustule period: effective anti-inflammatory, inhibit sebaceous gland secretion, reduce pores, maximum control of nodules and pustules. 3, nasal flaccid stage: this period drugs generally can not be treated, only through medical cosmetic technology and surgical treatment, photon and exfoliative laser, surgical square method cutting method, skin grinding, etc. To sum up: rosacea currently has an increase in the number of incidence, with personal habits, dietary conditions, endocrine, mental factors, cosmetic stimulation, abuse of hormones and other irritating drugs and other reasons, many reasons and triggers, patients can not go to good attention to prevention and withdrawal, so the ensuing skin problems are increasingly heavy, the onset of the beginning to involve hair follicles and capillaries, so the beginning of the disease is a sign that the disease The problem is very big, belongs to the nature of cosmetic skin disease, hair follicles deep in, the tissue level is deeper, many drugs can not penetrate, many drugs and their side effects are more, limiting the effectiveness. However, in the early detection, early reasonable and effective treatment or good prognosis, especially in recent years of medical cosmetic technology (photon, laser, CO2 laser invasive treatment, skin grinding), surgical treatment also has good results, but compared to medical cosmetic this nearly non-invasive treatment, many people still prefer non-invasive treatment. Early formal diagnosis and treatment; reasonable and effective treatment; good living habits; and care and repair at the same time.