I have been on a liquid diet since 2/14 - getting ready for bariatric surgery this week. Yesterday I developed several itchy areas on my body - 2 under the arms on the torso, 1 on stomach and 1 on my thigh. I have diabetes and take Valsartan, Janumet, Lipitor,metoprololsucc, glimperide and flecanide. Could one of these medications be causing the rashes due to not having any solid food for almost 2 weeks?