Welcome to the HIV forum. I'll try to help.
Variations on massage gone too far are very common on this forum. If you will use the search link and enter "massage", you will find hundreds of questions and answers pretty much like yours. The basic points are that it is the rare massage worker who has HIV; the virus is never transmitted by hand-genital contact; and receiving oral sex is extremely low risk, so low that some experts believe no such transmission ever occurs. Others estimate the risk at around 1 in 20,000, which is the equivalent of receving oral sex by an infected partner once a day for 55 years. Finally, pimples, sores on the fingers, or other minor skin issues do not increase the risk.
So the direct answers are:
1) No risk.
2) A new HIV infection cannot cause pimples to swell up.
3) You do not need testing for HIV on account of this event.
If you need more information in support of your no-risk status, please read the many other threads with the same questions.
Best wishes-- HHH, MD