Psoriasis refers to psoriasis, which requires medication, and is often treated with topical medication, systemic medication, and biologics in the clinic. 1. Topical medication: commonly used glucocorticoid ointment such as halometasone, fluticasone propionate ointment, vitamin D3 derivatives such as calcipotriol, tacalcitol, calcium-regulated phosphatase inhibitors such as pimecrolimus, tacrolimus ointment, keratinizing agents such as salicylic acid, coal tar, retinoids such as vinpocetine cream, tazarotene gel cream and other drugs. 2. Systemic medication: commonly used oral medications include retinoids such as Avicenna capsules, immunosuppressants such as methotrexate tablets, tacrolimus capsules and other medications. 3. Biological agents: commonly used biological agents include tumor necrosis factor alpha (TNF-alpha) such as etanercept and infliximab, interleukin 12/23 (IL-12/23) inhibitors such as ustekinumab and guselkizumab, and interleukin 17a (IL-17a) inhibitors such as skutecimab and other preparations. All of the above medications should be used under the guidance of a doctor, avoid self-medication, it is recommended to go to the hospital in a timely manner, early and regular treatment.