Re: What is this little clear bubble?
I actually have something very similar. It is also a clear-like bubble on the inside of my lower lip. I have had this for a little over a month though, but I have also seen the dentist who said that it was probably a "mucous seal" which is basically a blocked salivary gland (as that gland produces saliva, it has nowhere to go and forms that annoying little bubble). However, when this bubble pops, I get a sort of viscous red-clearish fluid that comes out. It then shows up again... and agan...
Apparently this sort of thing has to be surgically removed, so he sent me to an oral surgeon who basically confirmed what my dentist said. However, my dental converage for the year has ran out, so I won't be getting it removed until next year (along with my wisdom teeth- that'll be a fun week- haha!). My oral surgeon basically said that it most likely will not go away on its own- so it will eventually have to be surgically removed.
If you can, visit your dentist to get it looked over. The fact thatyours doesn't have any drainage is something that is different than my situation.