I'm 65 Years Old Male And Have ENT Who Has

I'm 65 years old male and have ENT who has diagnosed a severe case of Rhinitis and Sinusitis. Its been going on for 7 months and now they suggested balloon surgery, polyp removal and repair of my deviated septum all on the right.
Constant nose drainage, sneezing, blowing nose. My employer ran tests in office found nothing, and at home we have changed filters and I have a cool mist machine next to my . Also ran through the various prescription, predisone but I'm type two diabetic and steroid meds only work for a short period of a day or two.