Lobelia soaked water to drink has a heat detoxification, swelling dissipation, anti-inflammatory diuretic effect. However, longan brewing water can precipitate a limited number of medicinal ingredients, so the efficacy and role is also limited, can not replace the drug treatment of disease, so it is not recommended to unauthorized blind use of Chinese herbs brewing water. Longquan, taste bitter, slightly sweet, cold, to the bladder meridian. If there are carbuncle boils, dengteng (acute infectious diseases, visible skin redness like paint), pemphigus, bruises, snake bites, mashed external compresses, skin eczema, itching and other conditions, can be used to treat or improve the Longquai. It should be noted that pregnant women should not take. It is recommended to use Chinese herbs singly or in combination under the guidance of a doctor’s diagnosis to prevent medication errors.