things on the gums are most often canker sores, not herpes lesions (cold sores are caused by herpes, canker sores are not).
Actually, the type of blister that you are describing seems to be pretty common in people's description, and I've actually had it myself. They normally aren't herpes, no. I'm not sure what they are.
I actually don't think you need to test, but if you would feel better about it, you could. Remember that if you do test, and are positive, it will only tell you that you have infection, not where and not when you acquired it.
Terri
Thanks for the reply.
I've never had a cold sore ON the lip, it was only on the gums (this time the "blister" was unlike any other blister i've had (it was ronder and more liquidy)
I've never been tested for herpes in the past, I've never done anything at-risk whatsoever xcept that one time 5 weeks ago.
Should I still go in for a herpes test?
I think herpes would be unlikely to present in this way. Most often, herpes would last longer than a day. However, I can't say for certain that this is not herpes. Have you ever had a cold sore on your lip? Have you ever been tested for herpes in the past, in any way?
If you were my patient, I would recommend a baseline antibody test (IgG only) to see what your status is at this point and then repeat it in 4 months.
Having said all that, I think this sounds very unlikely to be herpes.
Terri