It is normal for cats to vomit after being vaccinated. This is a cat's stress response. Owners don't need to worry too much about this. They just need to ensure that the cat drinks enough water and feed it some probiotics to help regulate its gastrointestinal tract. However, if the cat’s vomiting continues for about a week, it may be caused by other factors, and the owner needs to take the cat to the doctor for examination as soon as possible.

What to do if a cat vomits after being vaccinated:

1. It is normal for a cat to vomit after being vaccinated. This is the cat’s stress response. Owners don’t need to worry too much about this. They just need to ensure that the cat drinks enough water and feed it some probiotics to help regulate its gastrointestinal tract.

2. It may be that the cat has an allergic reaction. The cat is allergic to the vaccine. Possible symptoms include: diarrhea, vomiting, shock, epilepsy, coma and sudden death. The owner needs to take it for allergy shots. Usually cats may have side effects after being vaccinated, so they need to be observed in the hospital for a period of time before going home.

3. If the above reasons are eliminated and the cat is still found to be vomiting, you need to take the cat to the hospital for examination and treatment in time.