I glued two fingers together with superglue and the usual remedies are not working

The solvent for that family of adhesives is acetone, and the most available source in a house is nail polish remover — check the label says it contains acetone, because many are sold acetone-free and those will not work.

Method:

1. Soak the joined area in warm soapy water first for a few minutes. This softens skin and sometimes gets you most of the way.
2. Apply acetone to the bond line with a cotton pad and keep it wet against the join for several minutes. It needs contact time; wiping it on does nothing.
3. Roll or peel the fingers apart sideways, slowly. Do not pull them straight apart.

The rolling motion matters. Cyanoacrylate is strong in tension and weak in shear, so a sideways peel separates it at a fraction of the force a direct pull needs — and a direct pull is how people tear skin.

The other reliable approach when acetone is unavailable is time plus mechanical patience: repeated soaking in warm soapy water, gentle rolling, and an oily substance to work into the edge of the bond as it loosens.

Skin renews itself. Even with no solvent at all, a bond on skin releases within a day or two as the outer layer sheds. So the worst realistic outcome is inconvenience rather than anything permanent, which is worth knowing because panic is what makes people pull.

Also: the adhesive itself is broadly the same chemistry as the medical version used to close wounds, which is why this is a nuisance rather than a poisoning.

Things to avoid, since you asked:

• Do not pull hard. The glue is frequently stronger than the outer layer of skin, and forcing it takes skin with it. Patience genuinely is the technique here.
• Do not use a blade to cut between them. It is suggested and it is a good way to add a cut to a stuck finger.
• Do not use acetone if the skin is broken, and keep it off anything you care about — it damages many finishes, plastics and varnishes.
• Do not heat it. Cyanoacrylate reacts with moisture and gives off heat as it cures; adding more heat is unhelpful and can burn.

If it is on or near an eye, or an eyelid, or inside the mouth, stop and get medical attention rather than trying anything from this thread. Those cases are genuinely different and are handled routinely by professionals.

For future use, since everyone does this eventually: keep a small bottle of acetone with the glue, not in the bathroom.

The moment you need it is the moment you have one hand available, and having the solvent in the same box as the adhesive turns a twenty minute problem into a two minute one.