past two days, whatever he ate he feels vomit sensation and sometimes he vomit the food, and sometimes saying stomach pain, 1 week before he take zentel syrup hereafter what can I do

A. Ginger works well for nausea and vomiting. Grate a small piece of ginger. Squeeze the juice out of the grated ginger and add a few drops of honey to make it palatable. Give it to your child twice or thrice a day. A mixture of ginger juice and honey will not only cure nausea but also aid the digestion process.