Hello. Thanks for writing to us at healthcaremagic Seems most likely that this is herpes genitalis; recurrence and morphology of the rash seems to suggest this. Genital herpes is caused by a virus, herpes simplex virus (HSV Type 2); it is a sexually acquired infection from an infected partner. Herpes is a local infection i.e the infection is localized to the area where it was first acquired. There can be relapses; relapses are caused by virus multiplication which subsequently travels down the nerve and causes fluid filled lesions. The episodes may be accompanied by Itching and burning sensation. I would suggest that you visit a dermatologist in your region for a confirmatory diagnosis. If I was the treating doctor I would like you as well as your partner to be tested for HSV by blood test. Treatment is with Oral antivirals like Acyclovir Or Valacyclovir. Regards