I had sinucitis before and i did CT PNS for it and it came as maxillary sinucitis and completed ENT course,but didnt got full relief so after a month i did Xray PNS it came frontal sinucitis.i didnt did anything for frontal sinucitis but whenever i wake up i had weird feeling that something like rubbery mucus or phlegm has sticked in the back of my throat or voice box.i am not sure whether it is mucus or phlegm because i dont have cough much.previous doctors told me that i had it because of sinucitis but now sinucitis got cured.so i dont think that it is because of sinucitis,so what it could be? And what is its medicine?please prescribe it and i am attaching my reports. Note: CT PNS is old and Xray is new.