Is there anything I can do to fix a little sagging skin, post partum, where my belly button was pierced? (Photo)

Having the piercing tract ("tunnel") removed surgically can be performed under local anesthesia and may improve your appearance.  You would end up with a small scar at the top of the tract and a small scar within the umbilicus.  I recommend that you consult with board-certified plastic surgeons who have performed umbilicoplasties.  They can examine you and then advise you on what you can reasonably expect from the procedure, as well as its potential risks.Good luck.

To remove the hole from a belly button piercing it would require a small in office procedure, but it would be a small surgery.  There is no non invasive skin tightening method that could possibly remove the hole from your belly button piercing.

You have recovered very well from pregnancy! The excess skin above your belly button which causes hooding  can be removed with a simple procedure under local anesthesia.