If general anesthesia isn't possible for toenail removal, what about an epidural?

Questionable: An epidural may provide some pain relief from the procedure but it would not be a first choice. In this case the risks of an epidural would likely outweigh the benefits. A digital block, ankle block, or more proximal nerve block would work better and be more appropriate.

Not really: There are much simpler options such as using injections of 'numbing' medication around the nerve, sedation, or even a spinal. For this minor procedure, an epidural can be used however it may be riskier than other options.