Hi, @gillytrue - welcome to Mayo Clinic Connect. As non-allergic, chronic rhinitis does not appear to be a clear, separate topic at this time and I thought it warranted it, I pulled your post into its own discussion.

This is how Mayo Clinic describes non-allergic rhinitis: Nonallergic rhinitis involves sneezing or a stuffy, drippy nose. It can be a long-term problem, and it has no clear cause. The symptoms are like those of hay fever, also called allergic rhinitis. But nonallergic rhinitis isn't caused by allergies. https://www.mayoclinic.org/diseases-conditions/nonallergic-rhinitis/symptoms-causes/syc-20351229

A few members who have talked about rhinitis, allergic or otherwise, include @jw9 @bride @jdbarr1 @cjblair @bee915 @nancif18131716 @johnhenson30. @nrd1 may also be familiar with this, as may be @sueinmn.

gillytrue - will you share more about your interest in non-allergic rhinitis? Is this something you have been diagnosed with? If so, will you share how you are preventing reactions?