It's not safe to use superglue in your own mouth because you may stick your fingers to your mouth. Call a dentist ASAP.
that's a way to remove blisters, once you get superglue on it, and peel it off, your blister is gone
Try some fingernail polish remover.
Cut it out then put a skim coat of mud over it.
Get superglue debonder.
Best practices dictate that you take your gemstone to a local jeweler who may be able to help you remove the superglue.
The best way is to soak it in hot soapy water.
Use acetone. If you don't have acetone, use nail polish remover. It has acetone in it.
removing superglue can be tough. first up, make sure the shower surface is gelcoat. if it is then it's safe to use acetone to clean the superglue from the surface. test it with a rag damped with acetone in an inconspicuous area to be sure before you attack the superglue area.
Dr. Harry Coover invented superglue in 1942.
You can try the common household WD-40, it removes everything
As the stuff called superglue is only made by properly registered chemical companies most people who want superglue go to the shops and buy it