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Your symptoms are suggestive of allergic rhinitis
and rhinosinusitis, that if it remains like this may develop into allergic asthma
You will need to know what the allergies are by either skin prick tests or specific IgE tests to aeroallergens such as house dust mite, animal dander, mould allergens etc.
A complete blood count
, IgE level, TSH fT4, Vit D levels are additional tests that help n understanding why the allergies have become severe.
Long-acting antihistamines such as fexofenadine 180mg taken once daily with Nasonex nasal spray 1 spray per nostril once daily for 3 months is recommended. The allergy tests
will help in determining which season you should use the treatment.
Failure of medical treatment means immunotherapy
over 3-5 years remains the last option that will also be decided on the basis of results of allergy tests.
I hope that was useful.