Lipodissolve is an unproven technique and if it has any effect it would be for a small amount of fat. Stick with the proven techniques such as a tummytuck and other skin removing surgery. Thermage is again good for small skin tightening only. As for when to see a plastic surgery either when you have plateaued with your weight loss or are near a reasonable goal. Good luck
Steve Fallek, MD
Plastic and Reconstructive Surgeon