Do you mean poop sticking in her fur? That isn't really something that should normally be happening. It usually indicates a problem with a rabbits diet. Either a new food or too many carbs and sugars in the diet. Parasites/bacteria can also cause poopy bum problems, especially if you are seeing any mucous in the poop, then you will want to get in to the vet right away as it may be coccidiosis. But if you just think it's due to her diet, then you can try making a few changes to try and clear up the soft poop. It would be good to start giving her some probiotics like Bene bac. Some pet stores carry it, Then you will want to try and figure out which part of her diet is causing the problem. If the soft poop started recently, and you also just started giving her a new food, that could be the cause. If not, then it is probably too many sugars and carbs. If you feed sugary treats, try stopping those. If that doesn't stop the soft poop in the next day or two, then try reducing her pellets a little bit every few days until the soft poop stops. Veggies could be a possible cause, but if the soft poop just started and you've been feeding the same veggies for a while, then it's not as likely they are the problem.
To clean off the dried poop, you can try getting the dried in poop moist to soften it up, then either use a wet washcloth to work it out of the fur, or you can give a butt bath to work the poop out of there. If you do the butt bath, you will want to towel dry as much as possible, and make sure to keep her warm until she is completely dry. If she isn't afraid of the hair drier, you can use it on the low or cool setting, to dry her. Just make sure it doesn't scare her, and also make sure she doesn't get too hot. You can even cut some of it out, but just need to be really careful to not cut too close to her skin, and also make sure she doesn't wiggle around while you are cutting.
