The best option to get rid of stretch marks is through therapy. You can also apply tretinoin and it should be applied as directed by your physician or get laser treatment. Consult a doctor or dermatologist for more details. You could also check out http://www.ehow.com/how_2052796_get-rid-stretch-marks.html.
Stretch marks are scars. The only real way to get rid of them is to have them removed surgically. In particular, a tummy tuck will remove excess skin and the stretch marks that are on the removed skin. It is a shame that no one told me this before I got pregnant and stretch marks as I would have done more preventive care. But basically after you have them then that's it.