With no pain (until you popped it), and
protected sex, herpes is a bit
less likely. On the other hand
, a "blister
" is consistent with the way a herpes outbreak would look. But typically there is more than one, and
you would normally have also had a fever, swollen groin lymph nodes, etc.
It's possible your Dr tested you for HSV 1&2 or not, it seems to vary from doctor to doctor. But usually you can call in and
clarify which tests were run.