You have the condition known as BAROTRAUMA
..it results from sudden pressure differences in the middle ear as occurs during descent in air travel.sudden occlusion of the eustachian tube which normally aerates the middle ear.In you case this conduit seems to remain blocked even after some treatment,which may happen sometime.A course of antibiotics alone will not help.A tapering course of steroids
will be needed as also nasal decongestion of this tube.Twice daily Nasivion
nasal drops followed 5 mins later by steam inhalation for a week will help.Tab Wysolone
10mg 3-4 times daily for 3 days then tapered to 2 times,then 1 time daily for 3 days each should help you.If not better you should take ENT consultation-a myringotomy
is what you meant by a hole in the drum-may help aerate the middle ear and help hearing till the tubal inflammation resolves.It normally closes not to worry.