The risk from any particular exposure is low, even with an "open area" of the penis, even if your parther had HIV. But you provide no clue about her or the likelihood she is infected, so I cannot say more. Most likely you don't need testing at all, but if you choose to be tesed, go to a clinic that does the duo test (combined antibody and p24 antigen). Unless you know for sure your partner had HIV, you don't need other special tests, such as PCR.
Most people with open genital sores have genital herpes. Get it checked out, even if you're pretty sure it's sunburn or some other traumatic lesion.
Good luck-- HHH, MD
May I add a question: does alcohol in any way help to deactivate the virus. assuming one penetrated the vagina using the finger and washed it with whisky or frnech kissing while drinking in-between spirits?
Alcohol inactivates HIV, but not in the concentrations to which the virus would be exposed by sloshing your wanger, finger, or mouth with whisky. Fingering and kissing aren't HIV risks anyway.
HHH, MD
Periodically this forum is hilarious.
A related discussion, cut on penis was started.