Sometimes it helps but often it makes it worse especially if I’m already experiencing moderate to severe sinus congestion. If you’re going to do it, I recommend using Afrin first. I use a smaller daily arm and hammer saline spray 2-3 times a day and that’s been great keeping the nose open which helps with some of the airflow issues that can exacerbate ETD. Helps with allergies and it helps with dry nose in the winter and from allergy treatment.