Hydrangea: Hydrangea in ancient times was made of "citron melon" (a kind of fruit similar to orange), but recently it was made of grapefruit.

Production method: cut grapefruit open, and stuff dried tangerine peel, Pinellia ternata, Poria, licorice, Erchen decoction, borneol and other medicinal materials into pulp. this

After the treated grapefruit is dried in the shade, it is cut into pieces to form the eight immortals.

Indications: Hydrangea is mainly used for relieving cough and resolving phlegm, especially for sore throat. Including the throat caused by a simple cold.

Symptoms such as pain, cough, dry throat and sore throat caused by smoking are relieved by hydrangea. But if it is a typical gas,

Asthma, that is, symptoms caused by tracheal spasm, infiltration or inflammation, asthma or cough caused by such lower respiratory tract,

Hydrangea is not effective.

As far as TCM terminology is concerned, hydrangea is effective for "hot cough" and has little effect on "cold cough". A hot cough refers to a cough in which gas rushes up when a common cold or sore throat coughs. Cold cough refers to allergic cough's disease and senile asthma caused by asthma (coughing when active, not coughing when sitting down).