Urticaria, commonly known as “pimples” or “rash”, is an edematous reaction of the skin caused by allergic reactions to the dilation and increased exudation of small blood vessels in the skin. Urticaria manifests itself as sudden, edematous domes of varying size and shape or patches of light red or skin-colored “bumps” (pimples), often preceded by itching and appearing after local scratching; it can also appear after heat, cold and strenuous exercise. The disease can be clinically divided into acute urticaria and chronic urticaria, acute urticaria fades within 2 to 24 hours, leaving no trace, and can recur. In chronic cases, the disease can last for months or even years. Some patients may experience nausea, vomiting, bloating, diarrhea, chest tightness and other discomforts. In severe cases, blood pressure may drop and suffocation may occur in those with laryngeal edema. Urticaria is a pruritic, allergic skin disease in which red or pale white wind clusters appear on the skin, appearing and disappearing. The disease is characterized by pruritic clusters on the skin, which are indefinite, start and stop suddenly, and do not leave any traces after fading. It is a very good idea to have a good look at the product. The actual cupping and scraping of the hives will enhance the body’s ability to resist disease and evil, and promote the remission of the hives.