4. Skin rash
Skin rashes can occur early or late in the course of HIV/AIDS. This could be another sign that you might not have run-of-the-mill allergies or a cold. Rashes can sometimes be like boils, with some itchy pink areas on the arms. The rashes can also appear on the trunk of the body. If [the rashes] aren’t easily explained or easily treated, you should think about having an HIV test.