what helps reduce phlegm
1 Arisaema is a major ingredient of the Pinellia and Arisaema Combination (Qingshi Huatan Tang), used for pain and numbness due to phlegm obstruction of the nerves, muscles, and joints. 2  The main active components are saponins that thin the phlegm and reduce inflammation.
Onions are natural decongestants and expectorants. Cut up and eat raw onions, in salads or eat as a sandwich, it loosens phlegm and mucus. Gargle regularly with warm water and salt. Do not swallow because excess salt intake can lead to dehydration.