Need to try this but use Apple Cider Vinegar!
Homemade Citrus Electrolyte Drink for Colds, Flu, Stomach Flu, Rehydration After Sports - DontMesswithMama.com
Honey-Lemon-Ginger Tea Very helpful for stomach upset as well as boosts the immune system, soothes a sore throat, and protects against bacteria and virus.
What to eat with stomach flu - Stomach flu is no fun anywhere, but these foods won't aggravate it. Make sure you have plenty on hand