Hubby has awful rash from urine. Nothing works!

My husband is bedridden and incontinent both ways. He has had a rash on his left side, from the bottom of his shoulder blade to his waist and in the creases of his stomach and leg. The rash looks like flat blisters. He is starting to complain about pain from the rash. I have used Calamine lotion, diaper creams from A & D to Pinxav and everything in between. I’ve used cornstarch, and bathe him with Ivory soap and vinegar in the rinse water as suggested by the HHC nurse he had this summer. I change him as often as I can. I’m his sole caregiver, have fibromyalgia and rolling this 300lb. + man over causes me a lot of pain.

Getting him to the doctor is almost impossible. We have a lift, a ramp and a power chair. He becomes anxious and frightened and tires out easily after just a short time in the chair.

I’m at a loss as to how to clear this up!