Omgoodness. I'm so thankful I'm not the only one! I had a sleeve to mini bypass done on 19th August and at week 3, I developed hives. Initially it was thought the hives were a drug allergy but they weren't. I can have totally clear skin then have a tepid shower and break out again. I break put at work or where my dog lays on my lap. I think of an itch spot and I'll look to find a welt. Lortadine is useless and the mild steroid creams I have are also ineffective. My surgeon has said no to steroid injections too. I'm going crazy with the itch. I wear gloves at work, I flare up, my watch band, I flare up. I've had to change to a heavier fabric scrubs to avoid the "slinky" material ones my organisation has because my skin didn't agree!