All right. Zanthoxylum bungeanum and onion have the effects of warming the middle warmer, strengthening the spleen, dispelling cold and relieving pain, eliminating dampness and resolving phlegm, and aged vinegar also has certain medicinal value, which can promote blood circulation, remove blood stasis, reduce swelling and relieve pain. Therefore, adding proper amount of mature vinegar to the water of peppers and onions can enhance the curative effect of peppers and onions and help relieve physical discomfort.