Compression Garments are causing Bruises (Photos)

My compresion garment is causing brusing on the mid section on ny waist ! I do feel it a bit tide but im getting use to it .. im more that sure thadt it's because i was not use to wearing a garment at all ! i had surgery on 12/17/2016 so its very resent to feel comfortable with it.. I try not to use it at night to have a better blood circulation! My question is should I stop using it and buy a biger garmet or what should I do ?