Fatty seaweed can clear heat and moisten the lungs (remove heat to moisturize the lungs), benefit the pharynx and open the voice, laxative, can be boiled in water or decoction, but decoction is more effective. It is sweet and cold in nature. It belongs to the lung and large intestine meridians, and has the effects of clearing heat and moistening the lungs, inducing pharyngeal cleansing, opening the voice, and moistening the intestines and laxatives, etc. It is commonly used in the treatment of hoarseness, dry cough, no phlegm, dry and sore throat, constipation, headache, and redness of the eyes, etc., which are caused by heat in the lungs. It is not suitable for people with cold spleen and stomach (spleen and stomach weakness and cold), as well as patients with low blood pressure and diabetes. In addition, it is not suitable for people with wind-cold and cold coughs, red and swollen throats, and coughs caused by lung yin deficiency. It is recommended that patients in need of treatment should consult a doctor for appropriate treatment under the guidance of the doctor’s diagnosis.