Thank you for your query.
At this age I would like to treat the child with oral medication rather then injections. I will resort to injections only if the child is not able to tolerate oral medication.
Your child is suffering from gastroenteritis
and now that the vomitings are under control it is only a question of time say 1-2 days for diarrhoea
to be controlled. You have to ensure that he gets enough of oral liquids so that he does not get dehydrated. As he is receiving a lot of medicines I shall like to wait for another 24 hours or so.
I hope I have answered your query to your satisfaction.
Wishing your son an early recovery..