Fatty sea is a kind of Chinese medicine, if there are indications, 4-year-old children can follow the doctor’s instructions with fat sea water to drink. The sea has a clear heat and lungs, the pharynx open sound, laxative effect, used for lung fever mute, dry cough without phlegm, dry sore throat, hot knot closed, headache and red eyes and other conditions. 1. Lung heat mute, sore throat, cough: fat sea water taste sweet, cold, light, the main to the lung meridian, has the effect of opening and declaring the lung qi, clearing heat and phlegm, treatment of phlegm-heat cross-blocking, the lung qi closure of the evidence. Its nature of sweet and cold and moist, and can clear heat and moisturize the lungs, pharyngeal sound, so the lung heat, dry heat and fluid injury caused by hoarseness, or high voice call, exhaustion of qi and injury to yin to the pharyngeal pain and loss of voice can be used. 2. Dry heat constipation, headache and redness: Fatty sea water is cold and clear and moist, belonging to the large intestine meridian, but also has the function of laxative, suitable for hot knot stomach and intestines, fluid deficiency, conduction of constipation, or both fever, headache, redness, and so on. Light evidence, single use that is effective, but heavy evidence, it is necessary to match with the clear heat diarrhea medicine can be effective. Although the fat sea has the above role, but the effective dose of water is limited, it is difficult to achieve the above effect, it is recommended to follow the doctor’s advice.