Chili is coming up on her due date for her shots, and I'm a little worried. Last year she had the parvo/distemper and rabies at the same time, and that night she had an allergic reaction. I'm assuming it was due to the shots. Since the two were given at the same visit I am not sure which one could have caused it. She does not have to have the rabies this year. It wasn't what I would consider a severe reaction. Her face got a little puffy and her belly was itchy and she vomited everything that went into her mouth. The next day she was fine. I called the vet so that they could put into her records that she had had the reaction. However, what will they do to prevent it from occurring again? Is it fairly common for a dog to be allergic to a particular shot?