Why do you need to wash her? If it's a case that she's ill, fair enough. However, I think a lot of people wash their rabbits because their diet causes them to have tummy troubles. If your bun isn't on 80% or more hay, with a small amount of pellets and fresh leafy greens/herbs, this is likely the cause for the tummy problems that mean you 'need' to wash her. Lots of people they can't feed sugary veg (carrots, parsnips) or fruit at all. They shouldn't be having more than an inch of it per day anyway.
If bunnies diet isn't as above, give that a try. If it's pretty good already, try cutting out all fresh veg/fruit out for a couple of weeks and see if it improves. Some people can't feed their rabbit anything but hay and pellets or it sets them off.
It's better to fix the problem :thumb: