What procedures could get rid of a g-tube scar?

Massage / revision: I would begin with aggressive massage using cocoa butter or mederma. If twice a day massage over a month or two does not improve the scar enough to suit its owner, he or she could consider surgical revision of the scar. This is a relatively simple procedure, perhaps under local anesthesia, where the scar is cut out and the skin and fat re-closed carefully so as to minimize the new scar. Good luck!