From what I understand, as long as they are inside your mouth and no where else that is not a herpes. You are most likely having a mild allergy reaction for eating too much wheat (I mean in bread, pastas or anything that is made with wheat). You can also get it as a reaction from citrus fruits or anything citrusy (if that is a word) but you know what I am talking about.
I get this all the time when I don't watch my wheat and citrusy food intake. I have one right now, because I have been eating nectarines and a lot of seafood dip in vinegar or soy sauce and lemon. However, if you did not eat anything like I describe above you may want to ask your doctor about it.
If you want to get rid of it fast, put salt directly in the open sore. Do it until you feel numb. Make sure you do it in the bathroom because it will sure make you go number one. Repeat it again when it starts hurting. I promise you after 2 days you will feel much better.
7 months ago