We are currently giving Ellie three CPT sessions x 20 mins each daily. Given that she doesn't cough during treatments, are the CPT sessions somewhat ineffective? There is a lot of talk about proper coughing techniques for optimum mucus clearance - given that you can't teach an infant how to cough to expel mucus, what are your thoughts regarding how effective CPT is at this age? We're not about to stop doing CPT, but I wanted to know what others' thoughts are....