Good morning
Needs detailed history and evaluation
Does he mouth breath or snore at night?
Is his academic performance good?
Better to avoid air travel until the condition subsides
Needs examination
This fluid in ear occurs in children due to tissue called adenoid behind the nose or due to allergy
Next Steps
Kindly donot worry after evaluation if present of adenoids can try medical managment if not subsiding then can think of surgical
Health Tips
Ask him to avoid sniffing secretions if any