The best treatment for minor bleeding in the nasal region is saline irrigation, which is what
you are already doing.
this procedure at least twice a day, once in the morning when you wake up, and once in the evening before you go to bed. You may also do it for a third time in the afternoon, or when you come home from work.
If your sinus infection is in your upper sinuses (sphenoid, frontal, or upper ethmoid) your results may not be as obvious on your first attempt. Don't give up.