Psoriasis is not contagious in any way. Psoriasis, also known as psoriasis, is a chronic disease caused by a combination of genetics and the environment in which it is lived. There is no evidence that a particular pathogen causes psoriasis, and there are no reports of co-living leading to psoriasis transmission. Psoriasis is a very common skin disease worldwide and has essentially no effect on systemic health, but it is difficult to cure and tends to recur. Current treatment aims primarily to control symptoms and improve the patient’s quality of life. If the rash is small in scope, no more than 10 palm areas in size, only applying medication is sufficient. For patients with a larger rash, it is recommended to combine with Aviatica capsules (2 capsules at noon every day) or anti-silver granules or compound amineptin capsules. It is worth reminding that many rural doctors will abuse systemic glucocorticoids to control psoriasis, which may be effective in the short term, but aggravated after stopping the medication and may easily cause complications such as hypertension and diabetes, instead of systemic health. Therefore, it is recommended to prefer not to treat or to seek medical attention at will. Psoriasis patients should live with warmth, less cold, no alcohol, less beef and mutton, no seafood and other stimulating foods.