Is The Presence Of Unilateral Nasal Polyp A Cause For Concerrn?

Hello Doctor, I m having ongoing issues with my nose (and ears), here s a list of symptoms: 1.     Starting from January, my ability to smell decreases 2.     In February, got cold-like symptom after skiing, then noticed nose congestion on both nostrils, right one is more serious 3.     Nasal congestion decreases after exercises or outside with good air, worse by taking shower or sleeping on my side. When sleeping on the side, the lower one was completed blocked 4.     Not too much mucus, if I try to blow out I can see thick white mucus no blood 5.     When tried to cough out mucus, it’s either white or a bit yellow, no blood 6.     No swollen bump on neck 7.     Starting last month, start to feel that when moving jaw or swallowing, I can hear ear popping sound, on both side, but right side was more obvious. Also notice itchy ears. 8.     Last specialist appointment, the ENT doctor did an flexible nasal endoscopy, and looked into my both ears. She told me that I had a unilateral nasal polyp on my left side, so CT scan and biopsy will be required. She said my ears were find, since she doesn’t deal with nose any more so I need to see another ENT specialist which will take a few weeks of waiting time Current medication: fluticasone furoate nasal spray, however it didn t seem to help. My question is: 1. Is my issue serious? Is it OK for me to wait for another month or shall I look for additional investigation immediately? (I always fear of cancer) 2. What s the most likely cause of my symptom?