Peppercorns boiling water foot soak effect is to kill insects and itching, should be used in accordance with medical advice, a single flavor of traditional Chinese medicine external foot soak is limited to the active ingredients, need to be identified through the physician with the medication to achieve a better therapeutic effect. Pepper belongs to the pungent and warm Chinese herbal medicine, belonging to the spleen, stomach, kidney meridian, has the effect of killing insects and relieving itching, warming the pain (through the warmth of the spleen and stomach to relieve pain). It is used for cold pain in the epigastrium (feeling cold pain in the stomach and abdomen), diarrhea, vomiting, and abdominal pain caused by worms; externally, it can be used to treat yin itch and eczema. Peppercorns boiled in water to soak the feet is equivalent to the external treatment of peppercorns, with the efficacy of the main is to kill insects and itching, treatment of eczema and pubic itching. Literature records that pepper is used for skin eczema, itching, pubic itch, often used in decoction water external wash, with bitter ginseng, white fresh skin, snakebeds, with the efficacy of clearing heat, dry dampness and itching. Pepper adverse reactions are not clear, pregnant women should be used with caution. If you need to use the drug is recommended to be used under the guidance of a traditional Chinese medicine practitioner to identify the evidence, unauthorized use of drugs may cause adverse consequences.