What are the effects and functions of the Chinese herb Qing Banxia?

Pinellia praeparata (processed Pinellia) has the effects of reducing swelling and relieving pain, clearing and benefiting the throat, reducing upward rushing qi, and stopping nausea and vomiting. After administration, Pinellia praeparata can reduce swelling and relieve pain, and is effective in treating sores, toxic swellings, and snakebites. It also moistens the lungs, relieves coughing, and enhances respiratory function. When people experience symptoms such as nausea, vomiting, and acid reflux, taking an appropriate amount of Pinellia praeparata can help regulate stomach qi, stop vomiting, and alleviate these symptoms. Patients should use this herb under the professional guidance of a physician and must not self-medicate to avoid adverse reactions.