Solvent which was designed to remove glue also softened the finish

Q: I removed the carpet and pad from a hardwood floor, but there was carpet glue all over it. I purchased a solvent which was designed to remove the glue but it also softened the finish in some places and made it tacky. What can I do to fix those spots? Can I put a coat of finish over them?

A: I would give the stairs a good rub down with some fine sand paper and apply a thin coat of finish.