I’ve had 2 dogs in my lifetime. They were potty trained when they were puppies. One of them was trained to go to the diaper, but then they were both trained to ask to go potty outside by standing by the door and bark. They were spoiled with love, food, and a bunch of fun. If they needed medication, we would administer it to them. When one of my dogs became old and couldn’t jump onto or from the bed, we got him a small stair so he could get onto his favorite spot on the bed. Sometimes he would ask to potty in the middle of the night and I would get up to take him out in the back yard so he could relieve himself.