Psoriasis clinically known as psoriasis, at present there is no specific treatment of the disease of drugs, often used drugs are divided into local drugs, systemic drugs, biological agents and other major types of specific drugs, need to follow the doctor’s instructions. 1. Local medication: the preferred drugs are mometasone furoate ointment, carbotriol ointment, tazarotene ointment, etc. When using the drug, you need to pay attention to the itching, burning and other discomforts of the skin, compared with a single drug, it is usually recommended to use a combination of medication, for example, carbotriol ointment and mometasone furoate ointment combined. 2. Systemic medication: the first choice of drugs are Avicenna capsule, methotrexate, etc., of which Avicenna capsule is suitable for severe psoriasis (including pustular and erythrodermic), the use of medication may cause dry mouth and eyes, itching of the skin. During the use of methotrexate, liver function should be tested regularly, and it may cause gastrointestinal discomfort. 3. Biological agents: At present, the approved biological agents for the treatment of psoriasis include adalimumab injection (occasional infection, headache), infliximab (for psoriatic arthritis, plaque psoriasis, occasional infections), etc. Biological agents have relatively fewer side effects, but the price is usually more expensive. Patients with different specific diseases, the need to use the therapeutic drugs will also be different, the specific use of drugs, need to follow the doctor’s instructions.