Hi, Does the hiv rash itches? One of my friend had sex with a married woman without condom last month and the very next day he is having itching sensational near his thighs and pennies.in how many days did rashes appear on person if affected by hiv? If the person affected by the hiv in how many days did the blood gets positive? After getting a negative in test that means what are causes of that rashes can you please suggest me?