Psoriasis is a type of chronic inflammatory skin disease, with the plaque type being the most common and is treatable. However, symptoms can recur, often worsening in winter and improving in summer. It requires enhanced skin cleansing and moisturizing care, a light diet, supplementation with vitamins and high-quality proteins, and the oral intake of medications such as total glucosides of peony capsules, tripterygium glycoside tablets, folic acid tablets, as well as indigo naturalis psoriasis capsules or curcuma psoriasis tablets. Topical tacalcitol ointment should be applied to the affected skin, combined with physical treatments like narrow-band ultraviolet light therapy. Some cases may require medicated baths or treatment with retinoic acid medications, particularly for special types of psoriasis such as erythrodermic, pustular, and psoriatic arthritis types. (Medication should be used under the guidance of a physician.)