As long as you haven't received instructions against it from your doctor, there is a Neosporin Creme w/ pain agent that works really well for tenderness. Use the creme instead of the ointment as the ointment has oils that can interfere with stitches/sutures/staples.
Once it has healed and is a scar, you can use Mederma, but not until it is healed over.
Try Aleve or Advil for the pain as they tend to work on muscle pain better than Tylenol. But, check with your Dr re: dosage and if they have a preference as these can sometimes thin the blood....
Good luck, get some rest, and maybe hubbie can wash dishes for the next week!