It is native to the South Asia. And it is also called mother-said-good fruit as its acid flavor, and favored by pregnant women. Lemons are rich in citric acid, its fruit juice are also very tasty, having full-bodied fragrance. With lemon bubble water, slightly acid and has refresh aroma. Lemon can not only used in bronchitis, the symptom such as agency polydipsia, but could decontamination, eliminating peculiar smell and so on.