Weāve had something like this in daycare. If it isnāt the roto virus, then I have found that giving just gingerale and maybe saltines works. Also, the BRATs (bananas, rice, applesauce - not apple juice, and toast) diet is how you should start once he seems okay, donāt go full force normal food. we had a stomach flu going around this past summer and even though my dd was hungry, I didnāt allow her to eat anything beyond saltines and gingerale for about a day and a half. My nephew, on the other hand, was given food the whole time and he was sick a lot longer than my dd. Theyāre about 8 months apart in age. However, the doctor will be able to help you a lot more. As a side effect, my dd now pretends to have stomach flu (ātummy bugā as we call it with her) so that she can get āginger popā since sheās not allowed to drink any other kind of pop ever.