The efficacy and function of Gua Piper Pi is to clear heat and resolve phlegm, etc. The method of consumption is mainly decoction with water. Psidium guajava is the dried mature fruit rind of Juniperus communis or Juniperus bisporus, family Cucurbitaceae. It is sweet in taste and cold in nature, and belongs to the lung and stomach meridians, with the effects of clearing heat and resolving phlegm, inducing qi to relieve the chest, and treating phlegm-heat coughs and chest tightness and dystocia (pain in the area of the coxae and ribs). This product is a traditional Chinese medicine, not a food, and can be combined with other traditional Chinese medicines to form a compound formula to be decocted into a soup to be taken orally for the treatment of related diseases. This product should not be used with Chuanwu, Prepared Chuanwu, Caowu, Prepared Caowu, and Appendices. The adverse reactions and contraindications of taking Psidium guajava are not clear. This product is a traditional Chinese medicine and should be used under the guidance of a professional Chinese medicine practitioner for identification of symptoms and should not be used on its own to avoid risks.