Pick up a small bottle of "nasal saline" at the nearest pharmacy store. Usually costs just a couple dollars. It helps to spray each nostril with your head tipped forward. Then you can gently blow your nose to clear it. Happens to me anytime I stir up dust while dusting, or while cutting fabric. I tried a dust mask and it drove ne crazy trying to adjust to it. Pharmacist was who told me about it. Best of all, no drugs.