It is more difficult to distinguish the acute AIDS rash from the common rash. The AIDS rash is more difficult to heal and has a worse prognosis than the common rash, and it is easy to form necrosis and ulcers. 1. Acute AIDS rash: 2 to 4 weeks after infection, some patients may appear rash. Performance for the head and face or trunk and other parts of the erythema, papules, does not have specificity, it is difficult to identify with the ordinary rash. And most infected people may not occur. 2. Rash in AIDS: AIDS patients have serious immunodeficiency, and many opportunistic infections and malignant tumors can occur. Herpes simplex, herpes zoster, viral warts, etc., the basic performance is similar to the common rash, but the symptoms are more serious, and frequent recurrence is easy to form long-term non-healing necrosis and deep ulcers. In summary, AIDS rash is difficult to distinguish from ordinary rash in the acute stage, and the basic symptoms of AIDS are similar to ordinary rash, but the symptoms are serious and difficult to heal, so you can consult a professional physician for advice.