I still have three of four wisdom teeth. Two on my left side and the other on the top right side. I have for a second time in about ten years, my left nostril started bleeding after several hard sneezes. I got it under control the first time. And then about 24 hours later in the evening, I tried to gently blow my nose, and ended up in the Emergency room. The Dr. tried the balloon method which wouldn t stay in and ended up using a nosebleed tampon. Concerning the balloon method, he wondered if I d had any surgery done, and NO was the answer. What would cause the obstruction and the balloon method to fail?