Thanks for writing to us.
The description provided does not match with typical lesions of herpes simplex
infection. I see no reason that you should worry for the same.
The lesion could have occured due to friction, use of a razor or due to an irritant reaction to soap or any chemical being used in the area.
Just apply a mild steroid
antibiotic cream in the area. wear loose cotton underclothes. Keep the area dry and avoid sexual proximity so that the lesions heal soon. Also do not use dettol savlon
soap to clean the area as these too are quite common culprits for inducing blisters or rashes in sensitive area.
Hope that helped.