Hi,
You could be having sinusitis or rhinitis. Do you have associated symptoms of cough, wheeze, breathlessness, post nasal drip etc?
You should try steam inhalation, saline nasal drops and oral antihistamine medications for your complaints and see if it helps with the symptoms.
You should see your doctor and get a clinical examination for a diagnosis and to evaluate if any investigations are required including blood tests, chest xray and CT scan of the sinuses.
Are you allergic to any specific substances or have had allergic reactions in the past?
You could read the following link -
http://en.wikipedia.org/wiki/Sinusitis
Let us now about how you are doing and if you have any other doubts.
Regards.
Highly recommended: a Neti pot. I have sinus issues too, mostly localized on the left side, and this is the only thing that keeps me sane. I occasionally use a nose spray to dry everything up and enjoy actual AIR for a change, but the Neti pot has been very effective for me and everyone I have told about it has continued to use it. It's basically a warm saline rinse that you pour through one nostril to drain out the other side. Takes a little getting used to but it is very soothing and IT WORKS. Good luck to you. -a