[header] How to stop retching after vomiting [title] Take small sips of a clear liquid. [step] Sipping room temperature water, flat ginger ale, a sports drink, or other non-caffeinated drink will help prevent dehydration and may help settle your stomach. If possible, take a teaspoon-sized sip every few minutes. 
[substeps] Try ice chips if you can't keep anything else down. Avoid acidic drinks, like citrus juice, as these can upset your stomach.