Huatanghong is made from immature Huazhou pomelo or pomelo by slightly blanching in boiling water, removing the pith and part of the mesocarp from the cut rind, and then pressing it into shape and drying it in the sun or in the shade.
Hwa Tangerine Hong is a traditional Chinese medicine made from the immature or nearly mature dried outer pericarp of the Huazhou Pomelo or Pomelo plant of the Rutaceae family, mainly cultivated, but also found in the wild. It is mainly cultivated in Huazhou, Lianjiang, Suixi, Xuwen in Guangdong, Nanning and Bobai in Guangxi.
Usually picked in October to November when the fruit is not ripe, slightly scalded in boiling water, the pericarp is cut into 3 to 5 petals, part of the mesocarp and all the pith are removed, pressed into shape, and dried in the sun or dried in the shade.
This herb is effective in drying dampness and resolving phlegm (expelling dampness by drying dampness and resolving phlegm), regulating qi and eliminating food, and is mainly used in cases of rheumatism, coughing and asthma with excessive phlegm, food stagnation (accumulation of poorly-digested food in the stomach) that does not dissolve, vomiting and hiccups, and distension and pain in the epigastrium (abdomen).
It should be noted that it should be contraindicated in cases of Qi deficiency, Yin deficiency and dry cough with little phlegm.
Specific medication should be administered under the guidance of a specialist, not without authorization.