At first excuse me for my English, I'm foreigner
On February, 21 2015 I hand shake someone I know him and I know he has a lot of sexual actions with girls, the problem is that his right hand was wet with his Saliva, Afterward (less than five minutes) I ate some potato chips with my right hand which I doubt if it's wet or not with his Saliva (As I remember it wasn't wet with his Saliva)
14 days later, March, 8 , 2015 (at the fifteenth day) I took HIV PCR RNA test it came Negative, Target not detected
28 days later, March , 15 , 2015 (at the twentieth ninth day) I took HIV Combo test and came Negative 0.274 S/CO
the problem is that I took Allerfin injection (Anti histamine) on March, 3, 2015 (four to five days before the PCR RNA test)
the questions are the following :
Am I safe from HIV or getting HIV infected from Saliva?
Could the Allerfin injection affect on my result, could this injection convert the positive results into negative results (the results that I got them), or it doesn't affect on the results?
Do I need further tests, at the lab where I went to they told me that the combo give Definitive result after 4 - 6 weeks, Do I need to get tested at the 6th week post exposure?
The lab that I took the PCR RNA test told me that this test give Definitive result after 12 days of exposure, Is this really true?
Please... Could any Doctor here answer my questions?