Welcome to HealthcareMagic forum .
Your child seems to be having a gastroenteritis
and the doctor has started antibiotics to which there seems to be some response .
The complete recovery may take another 24-48 hrs during which make sure to keep the baby well hydrated . If diarrhoea
persists and there is fever
, decreased urination, refusal to feed , or irritability in baby it's best to consult a pediatrician
for appropriate treatment like change of antibiotics , oral or Iv rehydration , probiotics and zinc supplements.
Hope this answer is helpful to you.
Wishing your child a speedy recovery .