It does not sound like herpes but can be due to insect bite or allergic reaction. The other possibilities are phytophotodermatitis, erythema multiforme or bullous pemphigus (less likely). I suggest you to get an evaluation done from a dermatologist to confirm the diagnosis.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.