You get an impedance audiometry
done, this will identify the amount of fluid and the compliance of the ear drum. Then the doctor might plan to insert tubes inside the ear to relieve the fluid. Please, do consult an ENT specialist
. Also, advise him to take steam inhalation 3-4 times/day, saline nasal drops 3 drops 3-4 times/day and drink plenty of warm water. This will relieve the eustachian tube (the tube connecting nose and the ear).
Dr. Naveen Kumar