Peppercorns and ginger boiled in water with salt have the effect of warming the middle and relieving pain (relieving pain by warming the spleen and stomach), stopping vomiting and detoxifying. 1. Pepper: has the effect of warming the middle and relieving pain, killing insects and relieving itching. It is used for cold pain in the stomach and abdomen (cold pain in the stomach and abdomen), vomiting and diarrhea, and abdominal pain caused by worms; external treatment of eczema and itching. 2. Ginger: relieving cold (removing cold from the surface of the muscle), warming and stopping vomiting (treating vomiting caused by cold stomach by warming the spleen and stomach), resolving phlegm and relieving cough, and relieving the poisonous effect of fish and crab. It is used in treating wind-cold cold, cold stomach and vomiting, cold phlegm and cough, and fish and crab poisoning. Patients are advised to apply it under the guidance of traditional Chinese medicine practitioners.