Hello, yes I do 7% saline everyday. It helps with airway clearance and to get the sputum out. But there are times of the day, such as being at work, out in public, or driving in the car, I get a sudden tickle that won't go away. In times like this I need the castor oil. Since I've been on Arikayce, it's really increased my sputum... I went from 1 to 10 on a scale. Though the excess mucus/sputum is irritating, I look at it as a good thing. I'm getting the bacteria out of my lung.