Hi
From the limited history that we have, it seems that you have an allergic rhinitis. Now since you know what the trigger is, you should take adequate precautions against them.
You could wear masks to protect against this dust etc.
I would suggest you use an anti histamine such as the one you are using.
Usually we would prescribe certain types of nasal spray but until someone examines and we get more info regarding your coexisting medical conditions I would wait.
Next Steps
Online consultation or see a local doc and connect us over Practo app for a joint consultation.