Loss of voice is an articulation disorder caused by lesions in the laryngeal muscles or vocal cords, with the main manifestation of clear mind and hoarse voice, or even inability to pronounce. The patient’s voice becomes lower in pitch and faint when speaking, and in severe cases, no voice can be produced. It is important to pay attention to the protection of the voice, and people who need to use their voice too much in their daily work need timely preventive care. 1. Do not use your voice excessively. Don’t scream don’t speak loudly in noisy areas. If you feel that your voice is dry or hoarse from speaking, then stop speaking. Keep your voice normal, not too high or too low, and speaking in a low voice is not good for protecting your voice. 2. Don’t clear your throat too much. When you do this, the airflow will violently shake the vocal cords, which will damage them. 3. Drink plenty of water and avoid alcohol and coffee. Keeping the balance of water in your body can moisturize your vocal cords adequately. 4.Don’t smoke, even passive smoking should be avoided, because smoking can significantly increase the risk of laryngeal cancer. You should avoid forceful throat clearing, coughing and other actions. 5.Get enough sleep and don’t eat too much before going to bed. 6. Exercise appropriately, and always keep your mood happy and relaxed. 7.Speaking should be reduced as much as possible when you have a cold, and you should drink more warm water and maintain your vocal cords at this time. 8, throat candy, Luo Han Guo, loquat paste or Peng Hai, etc., can only slightly relieve the symptoms, not over-reliance.