Ginger !
 

If your mom ever gave you ginger ale when you had an upset stomach, she had the right idea. Ginger has been a well-known cure for nausea for ages. However, when your stomach is churning and the mere sight of food makes you want to hurl, opt for fresh ginger root—it's more potent.

“If the thought of chewing on the food in its original form triggers your gag reflex, try adding grated ginger to fresh juice or hot water,”