Psoriasis, commonly known as psoriasis vulgaris, is a disease potentially related to decreased immunity, genetic inheritance, and recurrent tonsillitis. Once this disease occurs, it cannot be completely eradicated and may be carried for life. Therefore, it is crucial to follow standard medical treatments and avoid relying on folk remedies or secret recipes, as they could delay treatment progress. The most common treatment methods include oral and topical medications, such as Xiaoyin granules and compound clobetasol propionate cream. If possible, it is advisable to visit a dermatology department in a reputable hospital for narrowband ultraviolet light therapy. For more severe symptoms, treatment with biological agents through injections is also an option. This disease can achieve clinical control and clinical remission but cannot be completely eradicated.