1. what are the other symptoms associated with it: running nose,sneezing,watering from eyes, any itching in the throat?? 2. any difficulty in smelling? 3. could be possible Allergic Rhinitis/Hay fever? 4. any family history of the same. 5. any complaint of nasal Polyps or chronic sinusitis? 6. rather than avoiding the allergen you should boost up your Immune system with Immunomodulators (Rasayan chikitsa), because it is difficult to avoid dust 7. sleep with elevation of head at night to prevent nasal congestion. 8. Avoid dairy products,sugar,potatoes,tomatoes,banana, oranges,grapefruits. 9. apart from Ayurveda medicines you can consult with the Physician there for Neti type of nasal douching to help with your symptoms.