I teach the use of Neti pot to my students, and the results for those that try have always been very positive. I have one student for whom it is very painful. I recommend using non-iodized sea salt to make a saline solution with warm water. However, for this student, it apparently does not work. Do you know of what else could be used that would be gentler? She said she has always had a very sensitive nose, used to get bloody noses quite a bit, but know of no other damage.
Thanks, Joe