Psoriasis, also known as psoriasis, is a chronic, recurrent inflammatory skin disease. There is no specific treatment for psoriasis, but psoriasis is not incurable. Nowadays, symptomatic treatment is mainly used to control symptoms. For new episodes of psoriasis that are small in size, topical medications such as vitamin D derivatives such as tacalcitol are used whenever possible. In addition, glucocorticoids can also be applied. For the action of glucocorticoids, it is important to recognize that the effect of glucocorticoids is temporary, with significant initial efficacy, but rebound can occur after sudden discontinuation of the drug. In addition, topical application of retinoic acid can also be applied to dissolve keratin. In addition, certain drugs can be applied orally, such as immunosuppressants, like methotrexate, and oral retinoic acid and glucocorticoids. A combination of immunosuppressants and biologics may also be used. If psoriasis has a bacterial infection or fungal infection a combination of penicillin, cephalosporin or antifungal drugs such as ketoconazole may also be applied.