Whether on radio and television medical programs or advertisements, or in various newspapers, or on advertisements posted everywhere by traveling doctors, psoriasis occupies a considerable space and position. Among them, there are objective reports, but most of them are still pseudoscientific advocates. This at least indicates several problems: the incidence of psoriasis is relatively high, the pharmaceutical companies, individual practitioners, and wandering doctors are eager to use this to obtain considerable benefits; friends are still very ignorant of psoriasis. They are eager to be able to cure it quickly. This article talks about several issues that readers are most concerned about. What is psoriasis? What are its clinical characteristics? Psoriasis, commonly known as psoriasis, is a common chronic scaling skin disease of unknown origin, which can develop in both men and women, mostly in young and old, with a long course, often recurrent, heavy in winter and light in summer, and with the distribution characteristics of more men than women, more in the north than in the south, and more in urban than in rural areas. The cause of psoriasis is still unclear, and there are many theories of the cause of psoriasis, all of which are proposed through clinical observation or experimental research, but none of them can fully explain the cause and pathogenesis of the disease, and each of them is related or closely related to the occurrence of the disease in a certain aspect. The more common theories are: genetic factors, infection, immune dysfunction, mental and endocrine factors, etc. According to the clinical characteristics of psoriasis, it is generally divided into four types: common, pustular, arthritic and erythrodermic, of which common type accounts for more than 99%. Common psoriasis has an acute onset, and the lesions start as inflammatory red papules, which gradually expand or fuse into plaques with clear borders, surrounded by an inflammatory red halo, with obvious basal infiltration, and the surface covered with multiple layers of silvery white scales: gently scrape off the scales, and a light red luminous translucent film is visible, called the film phenomenon: then scrape off the film, that is, the top of the dermal papillary layer, where the capillaries are scraped, and small bleeding spots appear It is called punctate bleeding phenomenon (Auspitz phenomenon). White scales, film phenomenon, punctate hemorrhage is the clinical characteristics of wood disease. The lesions can occur in all parts of the body, but a few are limited to a certain area, but most often on the extremities, especially the elbows, knees, early often occur in the scalp at the hairline, band, hair in a bundle, but not hair loss. Finger (toe) nails are often damaged, commonly with scattered small thimble-like depressions in the nail plate, and in more severe cases, the nail plate thickens and becomes brittle. During the development of the disease, the rash takes many forms, such as dotted, coin-shaped, oyster shell-shaped, petal-shaped, wart-shaped, etc. The disease progresses slowly and recurrently. The course of the disease is slow and recurrent. Clinically, it is customarily divided into three phases according to the course of the disease: the progressive phase when the new rash appears frequently, is particularly red and itches intolerably; the stationary phase when the old rash is difficult to recede and the new rash does not come out; and the regressive phase when the peeling reduces the size and flattening of the rash. The latter three types of psoriasis are characterized by characteristic skin lesions with intensive pustules, arthritis and diffuse skin flushing and edema, respectively, and they are the heavy-duty of psoriasis, often evolving from improper treatment of common psoriasis. How to treat psoriasis? Doctors choose the treatment plan according to the following aspects: the severity and stage of the disease, the disease typology, the area of the affected skin, the response to the initial treatment: the patient’s age, gender, physical condition, previous treatment and personal preference, etc. The current recommendation is homeopathic treatment, i.e. “small disease, small treatment”. If there are only a few lesions, they can be treated with topical medication only, and systemic medication should be considered only when the rash is generalized and itching is obvious. The acute phase should not use irritating drugs, so as not to stimulate erysipelas; the quiescent phase can be given strong-acting drugs, but should start with low concentration and increase as appropriate, and it is best to take a bath with warm water before medication to remove scales and enhance the efficacy. Topical drugs: 1, corticosteroid preparations, that is, what the people call hormones, it is a wide variety, the efficacy varies is the most applied, the most frequent drugs. When the area of skin lesions is less than 10%, short-term application of strong hormones can quickly improve but not completely clear the rash. Note that long-term or excessive use will lead to rash aggravation, skin thinning, capillary dilation and other toxic side effects. 2, non-corticosteroids, that is, non-hormonal agents, such as tar, salicylic acid, onionwood. The use of these drugs should start with low concentrations. 3, vitamin D3 analogues less toxic side effects, good efficacy unfortunately more expensive, certain drugs have skin irritation, generally only for smaller areas and stubborn lesions long-term. 4, retinoids less toxic side effects all-trans retinoic acid, tazarotene topical effect is better, but there is irritation to the skin. Women of childbearing age should be contraceptive. Internal drug therapy: mainly anti-allergy drugs, antibiotics, tretinoin, retinoids, immunosuppressants, hormones, etc., internal drugs should be taken under the guidance of a doctor. The above homeopathic remedies are generally used from light to heavy, and if they are not effective then use the next step. You should not use a slaughter knife to kill a chicken, and never take hormones, etc. casually. Can Chinese medicine really go to the root? Traditional Chinese medicine does have a unique advantage in treating some chronic diseases. Chinese medicine believes that psoriasis is caused by blood heat, blood stagnation, dampness and wind dryness, and the treatment rules are: cool the blood and detoxify it, clear heat and remove dampness, dispel wind and moisten dryness, and activate the blood to remove stagnation. In recent years, Chinese medicine and combined Chinese and Western medicine have made great progress in the treatment of psoriasis, but there is still room for improvement in preventing recurrence and shortening the course of treatment. So far, oral Chinese medicine is still an adjuvant therapy. In addition, Chinese medicine also has certain adverse reactions, which may also cause liver damage should not be careless. Tips: Diet, lifestyle and attitude are as important as treatment. Some patients should avoid drinking alcohol or eating spicy food, which may aggravate the disease. Avoid upper respiratory tract infections and prevent colds. Keep your mood relaxed and do not be sullen or overstressed. Avoid stimulation by physical and chemical substances and drugs. Some patients are not properly medicated and their condition worsens. If the condition is in seasonal remission then there is no need to be overly aggressive in treating the attack as long as the symptoms can be controlled.