Question: how long should you fast after vomiting?
Answer: Do not eat or drink anything for several hours after vomiting. Sip small amounts of water or suck ice chips every 15 minutes for 3-4 hours. Next, sip clear liquids every 15 minutes for 3-4 hours. Examples include water, sports drinks, flat soda, clear broth, gelatin, flavored ice, popsicles or apple juice.