your child has gastroenteritis
. mostly viral.
what the child needs during this time is to give extra fluids in the form of oral dehydration
powder mixed in clean water. these are available in the form of sachets with instructions on the cover as to how to use it
Antibiotics will not be of help other than in a few specific conditions.
and poor appetite
are part of this illness.
see that the child is passing usual amount of urine which suggests that the child is not dehydrated.
hope your child is by now better