@letsjustbreathe I don't think the aerobika works for me either. I have very deep seated phlegm. It wants to come up when I lay back - not when I'm doing activities and upright. So a couple times a day I have to lay back on the recliner. Big pain when you don't want to sit still. Of course I do the nebs and the shaker vest. I suppose it all works together for good. I have to take mucinex too - do you?