Drinking water during that time is good
do Don't drink 1 liter at time as it causes it moves it down quickly with stomach movements
drink warm water or little water
stomach has 36 degree inside and if you drink cold water, it should come to 36 degree till intestestines or stomach does not absorb during that time the movements of the stomach(due to motions) will cause it to push downwards. So drink a little little at a time
If still motions still exists then check the skin
if you pull the skin out and leave the skin doesnot come back quick but takes sometime or slowly then we need to go to doctor as infection is more The doctor can put saline so dehydration is not severe.