Hi Welcome to HCM This could be due to eustachian tube blockage...you know there is something called eustachian tube which connects the ear with back of nose..so that ear gets ventilation... If it get blocked some times due throat infection...it causes ear block..less hearing... I recommend tablet levocetrizine with phenylephrine combination once daily at night after food for 7 days...and oxymetazoline nasal drops three drops three times daily in each nostril for 7 days... And Valsalva maneuver that you have pinch and block both nostrils and close your mouth and blow air..you hear a pop u sound in ear then release..this will open the blocked eustachian tube and ventilate the ear...do this 5 to 6 times a day for 7 days... Come for a review of any symptoms write me on healthcare magic... Wish you a speedy recovery Dr Paparaja S MBBS MS Consultant ENT Surgeon