HIV infection and test??？？！！！

[Rimando18]

Hi, i am worried about being infected by HIV, here is my case: I had protected sex with an unknown girl 3 weeks ago. 2 weeks later, I got a fever, after some medication, my fever was recovered but i found red rash all over my arms and legs. Doctor claimed that to be medicine allergy, but i was afraid to be infected by HIV. Is the chance of being infected high?
Is there any test I can do now(3 weeks after sex) to check whether I am Hiv positive/negative?

[Rimando18]

Thanks!

[chipdawg]

Its a duo antibody / antigen test, and at 23 days highly accurate, 28 days is considered conclusive. You don't have an hiv concern anyway.

[Rimando18]

Thanks for your reply again！ is the 4th gen combo means antibody and.antigen test? actually i was exposed for 23 days, can the test give a conxlusice result?

[chipdawg]

i very much doubt you got infected from this event, and symptoms are very poor indicators of hiv infection, and arms and leg rash? hmm...doesn't sound like hiv rash to me (more body and face if/ when it presents) - it does indeed sound like a drug allergy. but you are clearly anxious, so do that test as i advised and i'm extremely confident you will get a nice hiv negative result.

[Rimando18]

hi chipdawg, thanks for your reply！
But I am really concern about getting fever and red rash after supicious exposure.....
so a 4th gen combo means antibody test and antigen test? I read some thread there is something call p24, what is the difference?

[chipdawg]

3 weeks ? you can do a 4th gen combo, and it will give accurate results, but not definitive until the 4 week mark. as your sex was protected, it is not going to be a positive result.