For two months, i have had a feeling of swollen membrane in right nostril only. use of a neti-pot in the morning ocassionaly i get a a crusty blood tinged booger expelled in the tissue when i blow my nose. ct an mri scan showed nothing?

Information is missing. While a CT and MRI were normal it does not clarify what you nose examination is like. When I examine someone's nose I can see the mucus membranes inside and may appreciate swelling, redness which would not be seen on the CT or MRI. So you should see a doctor for the traditional and best way to evaluate you , an examination in person