Hi, so I have recently been on vacation so i am wearing a bikini everyday, yesterday  i noticed a blister right on my bikini line between my leg and my vagina. it looks like a blister with a little cream dot. i'm not sure what it is but I don't think it is herpes because it is only one blister and it is only painful when something is touching/rubbing it. i'm thinking it's maybe an ingrown hair but it is very blister looking.