welcome to this forum.
Can understand your concerns.
Repeated episodes of vomiting for 5 days along with fever can occur in food poisoning, acute gastroentritis, upset stomach.
In food poisoning, there is simultaneous appearance of fever and vomiting. After sometime, the child may develop loose stools.
In acute gastroenteritis
both loose tools and vomiting are present. Fever usually accompanies both of them.
In my opinion, your child needs antibiotic like ofloxacin
for a period of 3 days. Child should also be given antiemetic drug like ondansetron
However, since these are prescription medicines, and dosage depends on weight of child. Therefore, a visit to a doctor should be done for starting antibiotics.
Child should be given adequate liquid diet
, so that the dehydration
does not occur.
I hope this will help you.
Wishing your child good health. Take care.