Probably the only thing you can do to get rid of them completely is go to a plastic surgeon and have him laser them off. It will probably hurt like a bitch, cost a shitload, and you'll have to have it done more than a few times to have them completely removed. But hey ,if you really wanna get rid of them. I suggest you search the web for "laser resurfacing". I've read advances in plastic surgey/laser resurfacing has given people awesome results when dealing with things like stretch marks.
soshesblowinme