An Ear Nose Throat or ENT is ultimately who you should seek but your general practitioner or GP or Family Physician first. You must insist on further investigation as to your ailment. We are our own best advocates. I personally went to three emergency rooms for unexplained bleeding, saw five specialist until I found an ENT that knew what was going on. Tumor on a tonsil.
Again, what you have going on could and probably is something other than cancer. But you should get a definite answer.