He has been having diarrhea cold sweats can’t hold nothing down for 2 days stomach cramping.
Here are few tips:
Try taking ORS (oral rehydration solution) – Add one teaspoon of sugar, 1 teaspoon of lime juice, and a pinch of salt in a glass of water and sip this solution throughout the day to prevent dehydration.
Eat ripe bananas which help to build up the body’s healthy bacteria, which will prevent further infection.
For more details see below link: