I have had a dry cough for 18 years. Every time I go to the ENT he says, 'It hasn't been 5 years. Cancer doesn't grow that fast.' Two weeks ago, I had a lot of phlegm in my throat and when I brought it up, it was bright red blood. This was repeated a few days later. I have since learned on Dr. Oz Show that I have Silent Reflux, similar to GERD, but no heart burn, only constant coughing.