Hi..
The symptoms that you are facing of having sinus pressure, runny nose, itchy eyes and throat seems to be most probably due to flaring of allergies and is pointing towards
Allergic Rhinitis..
it can be due to causes like
allergic reaction to irritants like pollen, animal danders, dust and mites and at times even certain trees and grasses..
I would suggest you to consult an Allergist and get evaluated and a thorough clinical evaluation and investigations like allergic tests like
Patch test, RAST test, food challenge test etc can help in diagnosis and treatment can be done accordingly..
The tests will help in ruling out the exact cause of the allergen and once you know the cause of the allergic reaction you can avid exposure to it to prevent allergy attack..
As you have already taking Desloratidine, so now you can take a dose of
Fexofenadine 120 mg.
Do steam inhalations..
You can also be instilled an
Immunotherapy that will help in reducing the severity and frequency of allergic attack..
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Honey Arora,
Dentist