I hope you have had your ears checked by ENT to ensure there is no middle ear effusion
or a rupturd ear drum etc
Some of the above mentioned causes can lead to long term problems and recurrent infections.
function (profile), with Vit D levels may show up why you are getting a worsening of the allergies plus a complete aeroallergen profile
should not be taken for more than 4-5 days at a stretch as you get exactly the opposite symptoms.