Short story. Had endoscopy yesterday, they used Propofol and I had a nasal O2 tube. The O2 burned a bit and when I returned home I started sneezing, with runny nose and watery eye, all on my right side. Benedryl did not help, just took a Zyrtec. It's been 30 hrs and if anything it's worst. Called the doctor's office, and they said it will pass. This is getting pretty old right now. Was it the O2 or the Propofol?