I have been diagnosed with non allergic rhinitis
and the sneezing
and congestion happens mostly when I am ready for bed, or comes on suddenly during the night. At times I wake up because I am about to sneeze. I had a CAT scan, and my ENT doctor said my sinuses were inflamed. He gave me a 5 day steriod treatment and said he could only do it a couple times a year. I felt great for 3 weeks, now it's back to being as is was prior to the treatment.