Dog vomiting may be caused by food poisoning, parasites, bacterial and fungal infections, etc. Dogs should be dewormed regularly, and the dog's living area and used items should be cleaned and disinfected to avoid bacterial growth. If your dog has severe vomiting, you can feed it vitamin B6, diazepam, metoclopramide, atropine and other drugs to help the dog relieve it, or you can take the dog directly to the pet hospital for examination and treatment.