Psoriasis, commonly known as “psoriasis” in Western medicine, “white H” in Chinese medicine, and “pineal psoriasis” in ancient medical texts, is a common chronic skin disease that occurs on the scalp, extremities It is a common chronic skin disease that occurs on the scalp, extremities and back. It is more common in men than in women. It tends to recur or worsen in spring and winter, and remit in summer and autumn. Psoriasis starts as a pinhead to lentil-sized inflammatory flat papule, which gradually grows into a coin or larger light red infiltrated spot with clear boundaries, covered with multiple layers of silvery white scales. Gently scrape away the surface scales, a layer of light red shiny translucent film can be seen, called the film phenomenon. If the film is scraped away again, small bleeding spots will appear, called punctate bleeding. The lesions occur on the scalp, and the hair is in the shape of bundles, which is called the bundle hair sign. Patients with psoriasis often have thimble-like changes or yellowing and thickening of fingernails. In some patients, the scales are so thick and hard that they can prevent the skin from stretching, especially in joints, etc. The thick and hard scales can easily break and cause painful skin fractures. Clinically, due to the lack of knowledge of the disease, many patients misuse drugs and misunderstand the disease, resulting in the prolongation of the disease and even the emergence of red skin and flaking all over the body, which is life-threatening. Therefore, it is very important for every psoriasis patient to choose the correct oral and topical medication. 1, do not use the topical medicine for ringworm: psoriasis is commonly known as “psoriasis”, but in fact it is not ringworm, the so-called “ringworm” medically refers to some skin diseases caused by fungal infections, such as ringworm of the head, ringworm, ringworm of the body, ringworm of the hands and feet, ringworm of the fingernails and so on. The local dander of ringworm can often be found under the microscope as fungal hyphae or fungal spores, and treatment with antifungal drugs is often effective. Psoriasis, on the other hand, is not caused by a fungal infection, and its cause is complex, and treatment with antifungal drugs is often ineffective. The actual fact is that you will not be able to get a lot of money and aggravate your condition by taking antifungal medication or using topical ringworm medicine. 2. Do not use oral and topical medications containing hormones: Short-acting hormones include: hydrocortisone, cortisone. Medium-acting hormones include: prednisone, prednisolone, methylprednisolone, and deprenylone. Long-acting hormones include: dexamethasone, betamethasone and other drugs. Long-term application of large amounts of glucocorticoids may cause symptoms such as swelling, hypokalemia, hypertension, full-moon face, buffalo back, centripetal obesity, hirsutism, acne, osteoporosis and even femoral head necrosis. In children, growth and development can be affected by the inhibition of growth hormone secretion. The application of hormone therapy is not recommended for patients with psoriasis. Clinically, psoriasis symptoms are often aggravated after discontinuation due to inadvertent application, and even generalized puffiness, red skin and massive desquamation, i.e. psoriatic erysipelas and pustular psoriasis. 3, do not use or be cautious with non-national drugs: clinically often meet some psoriasis patients, because of taking some medical institutions homemade drugs, after taking the drug in a very short period of time the skin lesions improved significantly, soon after the drug is discontinued that relapse. The lesions often appear to be more than before, and the lesions should not subside. For various reasons, some medical institutions are likely to add some immunosuppressant drugs to the drugs, which are effective for psoriasis but have great side effects, especially the destruction of liver cells and bone marrow cells, inducing leukemia and life-threatening cases. Having psoriasis is not scary; what is scary is the pessimistic, eager-to-cure, perfect mentality. Patients with psoriasis are advised to always go to the dermatology department of a regular medical institution. Do not use drugs indiscriminately, indiscriminately, or in general; establish an optimistic attitude towards life and actively exercise. Only then can you have a healthy you.