Hives, many people may have heard of it, and if you are reading this article, you may have experienced it before; its incidence is quite high. Data shows that about 25% of people will have hives at least once in their lifetime.
Hives can be divided into acute (<6 weeks) and chronic (>6 weeks) hives, generally with the following characteristics: after onset, rashes, wheals, and vascular edema can appear on the skin surface; they recur, appearing suddenly, disappearing quickly without leaving a trace; and there is intense itching, accompanied by burning sensation.