Is the blister on your vulva? Like in between your lips or by your clit? Also what exactly does the blister look like? Herpes sores are like this:

Start as a pimple like red bump, its itchy and sore
Bump pops and becomes an open lesion
Puss and blood come out
It forms a white film (like a white head)
The film turns into a scab
The sore heals after about a week

I have never had a sore on my upper pubic region (like where the hair line is) IS this where it is?

It could be something simple like a pimple. However, if you have reason to believe you have been infected with herpes, it could be that too.

I dont recall any pus or blood coming out of it... although I just had a shower and it now looks like it has a hole in the middle :s It is quite high in the pubis area where the hair is... It is not near my vulva. It hasnt been itchy but it is a bit sore if i press on it

My guess is a pimple.

Of course only a doc can tell you, though.

I hope so Thanks for your help

yeah it sounds like an ingrown hair

I have had this happen to me more than once. Sometimes, boils/bumps may appear around or near the hair line. It is very possible that you have an ingrown hair or you have a boil that is coming, meaning it will get riper until it burst and the inflammation comes out. Usually, a hot compress with a wash cloth helps to open the pore and release the inflammation.

If it is an ingrown here, don't take my bad advice, but I grab a mirror and a sterilized tweezer and start hunting.

I have something similar, it only it is at the hair line that is right before the crevice where my thigh and pubic area meet. It started hurting yesterday, but I thought i just pulled some hairs, and then this morning it felt like I had a cut or something (I am a virgin). And it is about the size of the tip of my pinky, it is really red, did have a brown scab or something on it, and it now opened and bled but I don't think there was puss. It now just looks like a little hole.... could you help me out?