Speaking every day is a necessary way of communication, but the wrong way of speaking is likely to damage the vocal cords, causing hoarseness and pain. Symptoms such as hoarseness, sore throat and aphonia can cause people's normal work and life. This situation is mostly caused by frequent speech and overworked vocal cords. If the vocal cords work too long, the tension will be reduced and the throat will become very dry. To protect your throat, you must pay attention to daily protection. After using your voice, you must pay attention to rest. A strong body is the foundation of a healthy voice, and it is also important to exercise more at ordinary times. Eat less spicy, greasy, sour and sweet food, and soak some tea such as boat-fruited Sterculia, Lycium barbarum and Ophiopogon japonicus to clear your throat. You can also take a little slow, strict and comfortable granules to clear away heat and relieve sore throat, broaden your chest and moisten your throat. It has a good effect on dry throat, hoarseness and sore throat caused by excessive use of sound. If you talk for a long time, you'd better find a chance to let others talk and have a rest by yourself.