Do polyps swell and contract according to whether or not the nose is sensitive to allergies, etc.? The left side of my nose swells up to the size of a small egg whenever I am having a bad allergy day. Sprays do nothing to help me anymore and I am considering asking my doctor about removing the stupid things? Somedays my nose is completely normal (flat), but usually by the evening - it is swollen again on the left side. Anyone else have this experience?