Maxillary sinusitis+bleed. Surgery?

Bleeding started 1 month ago. Dr suggested PT,PTT,CBC + CT scan. Former normal, but the latter shows severe bilateral maxillary sinusitis with full plugging of right ostium and partial of left ostium. Took ciplox (15 days), Pause 500 (5 days), alocet/allegra etc. All the dr does is tweak these medications and ask me to come a week later. Bleeding is decreasing - mostly once in a few days while blowing nose, or by sucking in through mouth and spitting out. Clogging of sinus creating difficulties and headache. But still, dr asks me to check pressure daily etc., instead of attacking sinusitis. Forbade me from steam inhalation/neti saying it will lead to bleeding. Says she might have to do some cauterizations. Qns: (1) Why all this bleeding precaution when it is already decreasing? (2) If no neti/steam inhalation, how do I get relief instead? Can I disobey the dr on this? (3) Why is the dr not using endoscope yet, week after week? (4) Should I agree to endoscpic sinus surgery?