Welcome to HealthcareMagic forum.
A ear infection
can frequently spread to the respiratory Tract
through the eustachean tube ( connection between ear and throat .This can lead to symptoms like rhinitis , cough , pharyngitis
, fever etc.
However if the child is already on strong antibiotics it's unlikely to involve the lungs or cause severe complications like pneumonia.
So as of now you may wait and watch for some improvement for the next 24-48 hrs , however if fever worsens or persists after that then kindly consult your pediatrician
Wishing your child a speedy recovery.