First of all, that was quite rude to the toad. They deserve just as much attention as dogs do. Depending on the disease, you may be able to get help from others on the forum. Just describe his symptoms and someone will tell you what you should do. People have escaped impaction, bloat, and others by peoples advice. Some illnesses will require a vet but not all. Some others, like red leg are almost always fatal though. Take care of your toad and always make sure that anything that goes into the enclosure is sterile. Hope this helps!