Cough with hot phlegm according to Chinese Medicine
The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
The two Chinese Medicinal herbs most likely to help treat cough with hot phlegm
Why might Blackberry Lily Rhizome (She Gan) help with cough with hot phlegm?
Because it is a herb specifically indicated to treat cough with hot phlegm as can be seen on Blackberry Lily Rhizome's page.
Blackberry Lily Rhizomes is a Cold herb that tastes Bitter. It targets the Lung.
Its main actions are: Clears Heat. Detoxifies Fire poison especially for sore throat. Resolves Phlegm and lowers Lung Qi
Why might Catechu (Er Cha) help with cough with hot phlegm?
Because it is a herb specifically indicated to treat cough with hot phlegm as can be seen on Catechu's page.
Catechu is a Neutral herb that tastes Bitter and Pungent. It targets the Heart and the Lung.
Its main actions are: Clear Phlegm. Clears Heat and drains Dampness. Applied externally for stopping bleeding.
Other symptoms often associated with cough with hot phlegm
Sore throat Acute tonsillitis Acute laryngitis Cough with abundant phlegm Excessive thirst Bleeding Cold sores Eczema Bleeding hemorrhoids