Things can start to get ugly when the abdominal walls are so irritated that they produce gastritis; in other words, an inflammation of the gastric mucous. This affliction occurs when, for example theavidly lick their first snow (gastritis produced by snow). If your dog vomits often, it can become a vicious cycle: when the body loses the gastric acids, it also eliminates a lot of salt, which, in turn, stimulates vomiting again.You can give your dog a suppository used by humans to avoid seasickness or dizziness while traveling. If that doesn't work, then go to your veterinarian so he can put an injection and prescribe some infusions. In old , you might be able to wait for a day; in younger , however, it reaches a dangerous point sooner.