hello and welcome to HCM!
your symptoms indicate that you might be suffering from allergic rhinitis
or perennial rhinitis
an antihistamine 10mg orally once daily, is quite effective in immediate relief of symptoms but this is often temporary. you can add to this, intranasal corticosteroid like mometasone
furoate (nasonex)(200mcg once daily per nostril
). there may be a delay in its onset of action and you have to use it continuously for at-least 2 weeks before an effect can be documented. side effects of the drug are limited and are usually due to incorrect usage. also you can add to this, montelukast
10mg (montair)daily at bed time. keep in mind that the two drugs i have mentioned are to be used as a prophylactic treatment. montilukast has no role in treatment of acute attack.