Welcome to the HIV forum.
Initial reaction, based on the title you chose for your question, before reading anything else: There are no medications that have any effect on HIV tests; no drugs are known to delay seroconversion or change the reliability of the test results. Potent cancer chemotherapy and high-powered immune suppressing drugs (e.g., high dose steroids) in theory might have that effect, but I stress "in theory". To my knowledge there are no reports that it has ever actually happened.
Now I have read your question in detail. You describe a low risk sexual exposure with little chance of HIV infection and your combination test result at 6 weeks proves you weren't infected. The drugs you are taking make no difference. You can confidently go forward with the knowledge that you definitely do not have HIV.
That answers question 2. Question 1: Self diagnosis of fungal infections (thrush) of either the penis or mouth is not possible, if you are not a health professional. Even if you have thrush, it is not necessarily a sign of HIV infection or other immune deficiency, and as we said, your negative test proves you don't have HIV. Test results always outweigh symptoms in judging whether or not someone has HIV. If the symptoms persist, see a health care provider about it.
I hope this helps. Best wishes -- HHH, MD
Sorry just one point of clarification iif a hand job is low risk what is the level of the risk?
I have had three continuous symptoms for over 6 months which all started a couple of weeks following my risk exposure. These are thrush, pain in buttocks/lower back and night sweats.
Just wanted to confirm a couple of things
1. Are these ARS symptoms?
2. Is it possible to have ongoing ARS symptoms for 6 months following exposure?.
First, I doubt you have thrush; read my reply above. Second, thrush is not an ARS symptom. Third: no, it isn't possible to have ARS symptoms for 6 months.
Read my reply above and pay attention this time. Accept the reassurance you have been given. Your test results prove you don't have HIV. See a health care provider if you remain concerned. This forum cannot help you further.