Painful Stretch Marks?

Kristin
I'm 28.5 weeks with twin girls and have been in the hospital for the last 3.5 weeks. I've got stretch marks on my stomach all below the belly button at this point, but they hurt.  The nurses comes in at least three times a day and cover me in gel to trace the babies.  Which with twins isn't always easy so they are rubbing the tracing paddles all over across my stomach which makes them hurt more.  
I coat myself in oil and lotion but anyone else have any recommendations on how to make my skin less sore and irritated with not only the rapidly growing babies but the constant pushing and rubbing all over my stomach?  I drink at least 4L of water a day too.  Beginning to feel like the skins going to get thin enough for the babies to just claw their way right out 😱