I would trim and file as much as possible. I would also wash it daily with an antibacterial solution. Keep a close eye on it because split nails can lead to infection and serious complications.
I would also consider taking her to the vet and having it trimmed down to get rid of the split. It would be painful, but maybe not as painful as it is now. Don't know about the super glue idea since it could possible gain entry into the bloodstream. I too have heard of doctors using some type of glue instead of stitches, but don't know if it is a special formula. |