Question: what to do when you keep throwing up stomach acid?
Answer: Let Your Stomach Rest. When you are treating vomiting due to a stomach bug, or gastroenteritis,1﻿﻿ the first step is to let your stomach rest. ...  Drink Fluids to Prevent Dehydration. ...  Progress to the BRAT Diet. ...  Progress to a Normal Diet. ...  Treating Vomiting With Medications. ...  If Your Vomiting Is Still Not Under Control.