Painful Stretch marks?

Alexandria • 24 years old; Twin Girls EDD March of 2015 ( or sooner )💕
Hello Ladies!
So last week I noticed that I am starting to get stretchmarks ( 29 weeks with twin girls ) on the lower part of my belly and on my sides. But I've noticed that the ones on the bottom of my belly are hurting- like a burning sensation. Has anyone dealt or is dealing with this and what would be the best thing to do?  Thanks in advance!!