Get well soon!
As far as scar tissue goes, I got this one
If the skin is not completely healed, *honey* works wonders and will heal cuts of almost any size without a scar. They sell medical grade honey for this purpose, but I've found that whatever's at the grocery store works just as well for a fraction of the cost. Honey is antiseptic, and the extreme amounts of B vitamins (not just a pun) spur cell growth. Try it... just slather it on generously and cover the wound with saran wrap to keep it from dripping off. I'm a former EMT, and it's amazing seeing people who were previously *wrecked* come up and thank me a few months later
If the skin is already healed (meaning that it is closed and the initial scabs are gone) then cocoa butter works amazingly. they sell cosmetic cocoa butter for an accessible price, but a better grade at a better price is usually available at the Bodega or African food store. It's good for cooking as well. It clears up stubborn stretch marks and scars in a matter of weeks, if you remember to apply it 3 or 4 times a day, every day.
People do like Mederma, but due to the fact that it contains walnuts, it does much more harm than good to people who have nut allergies or sensitivities.