thanks for your query.
History seems there are two factors causing such symptomatology.
1. loud noise causing acaustic trauma, take time to resolve and it is temporary
2. Air travel leads again damage i.e. barotrauma
to middle ear.
now just take any anti inflammatory and antihistaminics like tab Levocet, along with multivitamines.
Avoid air travel and do not allow water to enter in ears, avoid swimming also.
Thanks, Take care