My dog has swollen face, hives, vomiting, bloody diarrhea. What to do?
Hello and welcome to Petco Pet Education Center, formerly Petcoach. Allergic reactions after bug bites in dogs can result in a swollen face, and can also result in some gastritis (vomiting and diarrhea). It looks like the swelling is improving which is good. I would suggest a vet visit if you can for the vomiting and diarrhea, however if that isn't possible then I would suggest to feed a bland diet of boiled/boneless/skinless chicken breasts and boiled rice, in small frequent meals for the next couple days. This will heal up a mild gastritis. The swelling will take time to come down, so just monitor that it isn't getting worse. If the diarrhea continues or if it becomes very bloody (looks like jam) then you will need to figure out how to take him to a vet. Best of luck with Charlie!
Updated on September 23, 2025