My 78 y/o MIL is in a skilled nursing facility, and has been so for about 9 months. She is a very kind person, and pretty easy to care for. However, she has recently started to push back on letting the aides "refresh" (clean) her. The aides have had to motivate her by reminding her that one of us is coming for a visit and that she will want to be clean for us. Are there other tactics we can employ to nudge her to allow them to give her a shower?
You could start by asking her why she is resistant (if you have that kind of relationship), but some possibilities might be: she's just too tired, because she isn't physically active she doesn't feel the need, there is an aide that has embarrassed her or hurt her.
My mom's nursing home had a huge spa tub that residents were helped into with a sling lift, although some found the lift a little scary the ability to be immersed in warm water was something many bath lovers had had to do without for years and was very popular - does your facility have this option?