It seems like herpes simplex
infection to me,although it has to be clarified once it has been examined by a dermatologist
The syptoms and description you have given in your brief question is leading towards the Herpes,but i can understand your concerns. The thing is if its a hepes infection then it can recur again and you need to be given prophylactic anti viral therapy
But for the time being you can apply Zovirax
ointment four times aday to the blistres and can take Tablet Zyrtec
10mg once a day to relieve the itch.
i hope the information will help.
thanks and all the best.