Is there a WRONG brand/type of CS to nebulize? (bronchial issues)

I've been on the CS wagon for awhile, as has my immediate family. It's been fantastic with my little one's ear infections(no more infections!)

It NEVER occurred to me to try nebulizing for an on again/off again cough I've had for two years. Twice a year I get chronic bronchitis, or something very similar.

In the past, nothing has worked. Antibotics(gasp! I know) and steroids have never helped a bit.

I've decided to nebulize CS just this past week.

Will any CS suffice? I currently have this Ultra Colloidal Silver 10ppm from "Source Naturals". Good to go?

Two nights ago, I nebulized with just straight CS.

Last night, I used 5 parts CS, 1 part Mullein and 1 part Lubelia(spelling on both), per some other posts/recommendations on here. Good GRIEF, was that rough :)
I Couldn't put the breathing piece in my mouth...and had to wave it around my nose/mouth instead.

Needless to say, it didn't go too easy, and felt pretty strange(strong).

After mixing all 3, I was awake all night with stronger than normal cough. Pretty fierce and felt HORRIBLE.

Is this normal or should I cool it on the mixing? Or is it just crap trying to make it's way out? Die off?

Sorry for the rambling, no sleep and a bit scattered today.

Any suggestion very much appreciated. Thanks!