Thanks googmonster,
To clarify it is B.
Did she have Hep A, B, or C? If C, this is not sexually transmitted as was once previously thought. I've had it for many many years and never gave it to my wife despite everything we did and still do unprotected. And we've done it ALL.
B is more easily transmitted but rarely becomes a chronic problem like C.
doc will know more I'm sure.
In a comment below, you indicate her infection is hepatitis B. Since the exposure was low risk, it probably isn't an issue, and the additional information you provide here doesn't change my previous response. The nature of your contact was too low to risk infection, regardless of potential skin irritation etc.
I am not sure how to judge the reliability of a negative HIV PCR test 11 days after exposure. It would pick up most HIV infections, but probably not all of them; but I'm not enough of an expert to tell you the percentages. On the other hand, let's say it was only 80% reliable. Your risk of getting HIV from the exposure you describe was probably 1 in a million. With an 80% reliable negative test, the chance you have HIV drops from 1 in a million to 1 in 5 million. In that sense, the negative result in your case is 99.999999% reliable (or something like that).
Finally, your situation is a good reason why all non-monogamous sexually active people should be immunized against HBV. Ask your provider to start your series of vaccine injections. Had you done it before, your HBV exposure wouldn't have been an issue.
Best wishes-- HHH, MD