Thanks for writing in to Healthcare Magic!
You might have a herpes simplex
infection and most likely contacted it from the lady.
The lesions are water filled burn like painful blister
which come in crops.
It is contagious.
You should apply local Acyclovir
cream thrice a day and keep the area dry.
Valtrex' rationale is like a too aggressive treatment, you can try it later if you do not recover with Zovirax
If you have any further query please let me know I would try to answer it for you.
Wish you a great health!