Welcome back to the forum.
In the US and probably all industrialized countries, nobody has acquired HIV as a result of a medical procedures, at least not in the past 20 years. A TB skin test carries no risk; neither does any medical injection or other needle use (e.g. blood drawing) by health care professionals.
Skin infection following a TB skin test, or any other medical injection/needle, generally does not result because bacterial are introduced by the procedures. They are caused almost entirely by bacteria already present on the skin; the needle carries the bacteria deeper and otherwise temporarily reduces the defenses against bacterial growth. If your skin infection indeed resulted from the skin test -- I'll have to trust your doctor's judgment on that -- it does not imply the needle was contaminated and therefore this doesn't imply any risk for HIV.
And your other symptoms do not even hint at an HIV infection. You cannot look at lists of HIV/ARS symptoms and conclude that just because you have some of those symptoms, HIV is a likely explanation. Most symptoms due to any minor, garden variety infection are included among the HIV symptoms.
So there should be zero concern about HIV in this situation. Don't worry about it. You don't need testing. Just continue to follow up with your doctor if the skin infection problem or other symptoms continue to concern you.
Regards-- HHH, MD
Thank you for the reply, it was certainly reassuring. Regarding the infection, the initial one stemming from the TB injection was actually a lymph/blood infection as I understand and quickily went away with antibiotics. The rash which was totally separate and on the other arm was from the unknown cause which is the one that raised the concern (only lasted 3 days and seemed to lessen with Zyrtec). Can you tell me why the rash does not fit with the ARS symptoms just for my own knowledge?
Also, thanks for your help 5 years ago when I was concerned about my young daughter who had stuck herself with a found insulin pen needle in a hotel. That was 100 times worse than this. Warm Regards...
The ARS rash is often termed "morbiliform", which in Latin means measles-like: painless, non-itchy red spots scattered all over the body, especially the trunk and less on the arms, legs, etc.
I read the 2006 thread before replying and almost commented on it. Even though the risk to your daughter was very low, I agree that was a more concerning situation then the present one.
Sorry, I forgot to ask about the single tender lymph node. Would the lymph node issues be more generalized in ARS?
Yes; ARS-related lymph node inflammation is body wide and typically nontender. And you had an obvious alternative explanation for an inflamed node.
Thanks again doctor, God bless...