The rash of AIDS varies in different stages of the disease. In the acute stage of HIV infection, it is usually distributed all over the body, among which the chest, back and limbs are more common, and is usually not accompanied by obvious itching, but also accompanied by swollen lymph nodes, fever and diarrhea, and a white moss on the tongue in the mouth. This AIDS rash is self-limiting and can resolve on its own after 2-3 weeks. The rash is different during the onset of AIDS. During the onset of AIDS, the rash is often localized due to opportunistic infections, such as fungal and bacterial skin infections, as well as impaired metabolic secretion of the skin.