Could be viral. Enteric fever
needs to be ruled out
Thanks for asking on HealthcareMagic.
I have gone carefully through the details and understand your concern. Most often such symptoms are due to viral infections and antibiotics are ineffective in such cases. Your child is possibly suffering from such an infection. Irrespective of treatment it usually spontaneously resolves in 5-7 days. Some children are more prone to catching cold
and recurrent episodes are seen. Often such viral infections manifest with fever. If your child is otherwise active and playful, I would not be concerned. If not, it would be a good idea to visit a doctor and to get the child evaluated.
I would also insist you to get a complete hemogram and a Widal test