Hydration: Perhaps, the simplest answer is simple hydration with water. Salt water rinses might be helpful. If you think the phlegm is coming from your sinuses and nose as post-nasal drip and you have allergies, it would also be worthwhile to treat your allergies.
Answered 12/26/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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