sending a big hug- i can't imagine how hard it is- the poor sweet guy. If he is on antibiotics he should be getting some probiotics- the easiest way is to give him pro biotic yogurt. The antibiotics could be what is causing his bad poop, even if the initial health problem has cleared up. Give that a try. Also i know it must be so hard to get him to go poop/pee outside- but when he does- give him a lot of treats right after he does it outside- he should start to put two and two together and might make an effort to go out- although i'm sure the urge to go comes on quite fast for him so right now it might be hard. Hang in there mom! he's lucky to have you