What Should You Do If Doggy Gets Stomach Upset?
The first thing you to do to help your dog get over a stomach issue is to make him fast for 12 hours or an entire day.
Since his stomach is trying to get rid of some bad thing that he ate, it can be very helpful not to put anything else in his stomach and allow the body to deal with it. Your dog will be perfectly fine without food for a day.
Fasting for a short period of time was shown to be safe for dogs. In a study with 20 dogs being treated for cancer (Withers, et al. 2014), scientists observed that fasting helped with vomiting and diarrhea, and did not pose any danger.