I am very happy to report that my nasal polyps have not become a problem since using castor oil.
In the morning I steam my sinuses, then I use the neti pot with 1/4 tsp salt and 1 tsp apple cider vinegar to one cup distilled water (warm).
The AC vinegar stops all bacteria growth (sinus infection) In the evening I steam again and put 2 drops of castor oil in each nostril when I go to bed.
I used a rinse (cortisol) from the doctor for a month to get them down so I could breathe and smell again. Once that was done I have only used the castor oil and apple cider vinegar to keep all infection and polyps at bay for 3 months and running!! I think I'll cancel the MRI scheduled next month in preparation for surgery...don't need it!