Depends: It depends on how much sputum your lungs accumulate. Once daily is the minimum but the more often the better. If your problem is severe, i think 4 times a day would be a reasonable solution.
Answered 1/4/2014
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2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
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