My mother has Alzheimer's and wants to go to the bathroom every five minutes. Advice?

Do you go with her to the bathroom? When we first started taking care of my mom we were allowing her to go to the bathroom herself. Well I stopped doing that when I realized that she likes to take toilet paper out of the trash, old depends, forgets to pull down her pants before peeing, etc. Anyway, she used to go to the bathroom a lot too (the one place she could be alone I suspect) but now that I go with her every time she only goes once every couple of hours, granted it seems like it's when I'm cooking or just sat down to eat LOL.