There is no absolutely safe and effective ointment for psoriasis, which belongs to chronic scaly skin disease, and it is considered to be related to genetic factors, immune factors, etc. Emollients, retinoic acid preparation, salicylic acid ointment, compound preparation, glucocorticoid ointment, etc. can be given to improve the symptoms. 1. Emollient: Emollient cream itself cannot cure psoriasis, but it can reduce local itching, flaking and dryness by applying emollient cream. 2. Vitamin A acid preparation: By using vitamin A acid cream, the purpose of softening and dissolving keratin can be achieved, which can be used for the treatment of plaque-type psoriasis and improve the local flaking symptoms. 3. Salicylic acid ointment: through the use of salicylic acid ointment application, can promote psoriasis, localized dead skin cell shedding. 4. Compound preparation: psoriasis patients can apply compound captopanol ointment, so as to improve the therapeutic effect and reduce the local adverse reactions. 5. Glucocorticoid creams: mainly including budesonide, mometasone furoate, hydrocortisone, betamethasone and other creams, which can be used for the treatment of mild and severe psoriasis, and effectively reduce local itching. Severe psoriasis requires oral medication such as methotrexate, etc. All of the above medications should be used under the guidance of a doctor, avoid self-medication to avoid adverse effects.