The symptoms I noticed is 15 days after neck stiffness and Razor bumps / pimples on the face ( which is generally. I used to have after shaving)

After 45 days again more pimples on my face 

My question 

how reliable is hiv combo test after 45 days .?

Is pimples(red Color with white patches ( Dry skin due to cold weather) is symptom of HIV ? 

Do i need an another test?

Ps:- generally I have skin problem with acne on head & shaving bumps on face this time due to fear I may be over noticing 

Your worries are over:  you were not at risk for HIV from this event and you do not have it. There has never been a scientifically documented case of HIV transmitted oral to genital. That doesn't prove it cannot happen, but it is exceedingly rare. Based on how people believe they were infected (probably often wrong), CDC estimates the risk of fellatio by an HIV infected partner at one chance in 20,000. That's equivalent to receiving BJs by infected partners once daily for 55 years before infection might be likely. A second factor is that according to a prominent STI/HIV clinic in Dubai, HIV is rare in female sex workers -- so the odds are strong that your partner doesn't have HIV. (If anatomically a male who has frequent sex with other men, the risk is higher, but it remains unlikely s/he has HIV.)

As for your symptoms, they do not hint at having HIV, which does not increase acne/pimple problems.

Finally, your AgAb ("combo", 4th generation) HIV blood test is conclusive and proves you do not have HIV.

For all those reasons, it is certain you do not have HIV; you weren't even at risk. All is well and there is no need for additional testing.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

Some points I need to clear

1) The massasue was 

Lady boy from Thailand is this increase the risk

2) I am  from India and one of the doctor said 90

days test is recommended for conclusive result . Even from

CDC  and BHIVA websites I understood 99% infections will be detected within 45 days . So Doctor as per you is 4th Generations test conclusive @45th Day ? 

As noted above, you were at such low risk that you did not need testing anyway. You definitely do not have HIV. Believe it!

This is my first experience outside marriage I am full of Guilt feeling .

My logic says this is low risk and to believe my test results . But some time there is some Feeling which seeing only the words risk, 99% and thinking what if I am in that remaining 1 % . Last 55 days literally the worst period . 

That concludes this thread. Thanks for the thanks; I'm glad to have helped. Best wishes and stay safe.