2. It has the effects of resolving phlegm and relieving cough, inducing diuresis to reduce swelling, expelling wind and removing dampness, dredging collaterals and removing blood stasis. Commonly used treatment, traumatic injury, rheumatic joint pain, epigastric pain, strain, edema, fire and water burns, bronchitis and so on. After mashing Zanthoxylum bungeanum root, it is applied externally to the affected area, which has a good therapeutic effect on swelling, pain and sores. However, pregnant women and those with yin deficiency and excessive fire should not use it.