My husband also has Parkinson's Disease with early Lewy Body Dementia. It just recently has gotten to much for me to handle. I need someone to help with showering and dressing him. God only knows what else I need. I think I will soon figure it out. Help me with ideas if you have some....I live in Michigan, Livingston county.
There are bathing Aides that one can hire through a caregiver Agency.
Another idea, see if your husband can apply and be accepted by Medicaid [which is different from Medicare]. Each State has their own rules and programs. Your State might have a program where an Aide can come in to help you couple times a week, to give you a break.