It's look like viral only
No need to worry
Keep ur child well hydrated with plenty of oral liquids including water Fruit juices and ORS if needed
Don't force for solids food
Continue to give fever medicine if fever
Add otrivin p nasal drops 1drop in each nostril 3 times a day for 3 days
Wait for next 4-5 days
Everything will be fine
Next Steps
If problem persist then consult to ur nearest pediatrician
Health Tips
If still confusion then don't hesitate to consult me online