So for the past few months, there's this recurring blister thing on the base of my tooth. It's exactly at the base, maybe only a few millimeters from the tooth itself.

It's small, like a canker sore, and doesn't hurt. I usually pop it, and clear liquid will come out, leaving a red mark on the gum. Then a few weeks/months later, it happens again and I do the same thing - pops it.

I did a bit of reading and seems like this could be an abscess? The tooth seems healthy though. I went to the dentist last December and I didn't say anything cos then, this blister wasn't 'on'. I know I probably should have left it alone and showed the dentist, but... impatient me.

So... thoughts? Thanks!