1, phlegm diarrhea heat. Psidium guajava seeds cold, sweet, clear and moist, transform phlegm and diarrhea heat, for the treatment of hot phlegm and dry phlegm of the key medicine. Used for hot phlegm internal knot, coughing and wheezing, phlegm yellow and sticky.

2, antidiarrheal. Guayuzi contains fat oil antidiarrheal effect is strong, in the present has a good therapeutic effect.

3, Psidium guajava, also known as hanging melon seeds, is a common Chinese medicine, the seeds of large meat, but also rich in unsaturated fatty acids, amino acids and other elements, can be described as edible melon in the best. The fruit, rind and rhizome of the squash seed can be used as medicine and have an important role in Chinese medicine. According to various Chinese medicine dictionaries, it has the effect of clearing the lungs and removing phlegm, laxative and laxative.