She's currently 75. Suffers from severe asthma, and really bad dementia. Anytime we try to get her into the shower, she argues with us and tells us no. She also has a problem with bladder, and when she has an accident, she still refuses to take a shower. I'm starting to get worried as she has begun to smell very badly along with her room.
Mom was extremely afraid of falling & got very cold. We had a shower chair. Her towels were warmed in the dryer so she could be wrapped up good afterwards.
This did help a lot. The only person that she allowed to shower her was her evening caregiver. Tell mom either she showers or she has to move.
You could try to get an aid to help her with a shower to see if that makes a difference.