My 8-month-old papillon-poodle mix was potty-trained (and had never had an accident in her crate) up until about two weeks ago when she was spayed. The first week afterwards, she had diarrhea at least twice a day in her crate. A few people suggested giving her 1/2 a pepto chewable, which helped, but she still continues to poop and now pee, in her crate two-three weeks later. Help?

Has the diarrhea cleared up? I would get back with the vet. It is possible something went wrong.

This won't fix the problem, just make it easier to live with. A wire grid in the bottom will help keep the puppy up out of
Accidents at first. They are available with the crates, but expensive and hard to find. A piece of closely spaced wire closet shelving from a home supply place is cheaper. I am now using a plastic vegetable bin with plenty of holes drilled in the bottom.