Hi, I had a very similar issue to what you have. It started as 2 small red itchy bumps on my inner thigh and if I popped 1 a clear water fluid came out. As a scratched it it developed into 2 sores and then spread 2 the skin on my scrotum which was in contact with the sores. It really itched and I scratched it so much that the skin on my scrotum went kind of raw and a huge scab formed on that area. Upon seeing the Doc, he told me that what I have is a fungal infection which turned bacterial due to my scratching of it. I was given an anti biotic, an anti inflammatory, and another tab that had to be taken with milk as well as a cream to apply to the infected area. Its been two weeks now and the scabs have peeled off and the skin underneath is almost back to narmal apart from 3 small pimples on the skin of the sores on my inner thigh. It does itch from time 2 time but it is no longer a blister. Hope this provides you with some insight 2 your problem.
Take care
odds are these aren't herpes. go and be seen and get them properly looked at so you can find out what is going on and treat it properly.
grace