Before u do anything, find out the cause.

Bananas Rice Applesauce Toast ( BRAT ) diet for a sensitive tummy. But in your case with active emesis, colorless Gatorade or Powerade ( electrolytes ) in small sips and saltine crackers is probably all you can do

Toast, bone broth, saltines

None. Sip water and Gatorade slowly and consistently. If you can't stop throwing up, get to an ER and get zophran and iv fluid.

Saltine crackers, sips of Sprite and Gatorade