I can empathize! My rashes are pretty much everywhere except bottom of my feet and face. My team works closely with a dermatology oncologist. He prescribed triamcinoline ointment zerteck (sic) for the itch. The rash starts to flare up after the 1st treatment of both padcev and keytruda and then again after the second treatment of only padcev in the second week of every cycle. Heavy duty moisturizing with a non scented excema crème plus the prescribe ointment has kept it manageable . Odd thing is that I look like I have a tan and I peel like I have a mild sunburn. Derm has also prescribed prednisone , since 2 rash events have sent me to emergency room to rule out Stephens Johnson reaction, but luckily it has not been needed. Honestly , loss of appetite , taste and fatigue has been a much bigger issue for me. No issue with neuropathy.

Oh that sounds uncomfortable!