All these symptoms suggest that your child might be suffering from upper respiratory tract
The management consists of:
1. Drinking of warm fluids to reduce throat pain
2. Antihistamines to provide symptomatic relief from cold & cough
3. Analgesics to take care of pain & fever(if any)
4. Antibiotics like amoxicillin
to remove the causative organism.
If symptoms still persist...it will be better to consult an ENT specialist
There is no need to worry...you will be perfectly fine.
, avoid taking cold food & drinks, maintain adequate hydration & take soft, non-spicy foods.
Wishing you a speedy recovery.
Thanks & take care.