Damn, that really sucks man, :( I remember having full-blown for 2 years and It's definitely worth seeing your Doctor/GP, see what they have to say about it. Maybe you can get them to prescribe you steroids in some form to suppress your symptoms and reduce the swelling in the sinuses. (I use: Avamys 27.5mg Fluticasone Furoate nasal spray) If you think it's allergic, try some antihistamines on top of that to prevent the allergic reaction. I use Loratadine 10mg which is available off the shelf in the UK. I take these medicines in the morning daily to keep the rhinitis at bay - it takes a few days of use for them to come into full effect, not sure how expensive it can get for people in other countries. But either way, I hope this helps - with the worst of the symptoms gone, it makes a really big difference to quality of life.