This is a major issue for us. My Grandad has ALWAYS had terrible personal hygiene issues which, before he was diagnosed with Dementia, lead to sepsis. He has a Catheter in his belly and because he refused to clean, it went septic. My uncle found him about to go for a walk, stark naked because he was burning up.
Unfortunately, his wife, my Nan, Died at 61. She was forever nagging him to wash and when he did, she had to grab his clothes while they were off! He's wear the same skids for a month if he wasn't married
My grandad's idea of a shower is, walk in, get wet (slightly) then walk out. We (my family) and the carers literally have to talk him through a proper wash. Sometimes he gets so frustrated he shakes but, with a pipe in his belly, he needs to wash every day. Most days we'll encourage him to pick his soap up, he'll over-do his face and head and think that's enough.....
We then say 'what about the rest of your body?' some day's it's ok gimme a flannel, other's it's f**k off I'm done. Carers can't make him, but I'm ******** if I'm gonna sit up the hospital for hours because he won't clean properly. At least he does his pits, genitals (especially foreskin due to antibiotics (thrush) backside (I regularly find lumps..., skids on the bed) and most importantly, round his pipe. In the process, I get fists, shoves and a lot of verbal abuse! I'm not actually doing it myself, I'm asking him to do it....