Tips on loose skin

Hello, I have been training for a couple years now, to the point where I completely transformed my physique. I was extremely overweight at one point; today it still shows reminants. I am currently getting ready for my very first bodybuilding show, and I still have areas of loose skin (midsection, inner leg, etc.) I was able to fill certain parts out where loose skin was once present. Now that I keep getting leaner, my waist is getting smaller and smaller, the skin becomes more of an issue around my midsection. Any advice will be greatly appreciated. Thank you for your time!