The first thing is to pay attention to adhere to outdoor activities in order to enhance the muscle’s defense against diseases and avoid pharyngitis and laryngitis. The second is to develop a throat hygiene habits. Before and after meals to make the throat water gargle, usually drink more tea, keep the throat clean. Smoking and drinking should be moderate, otherwise it will stimulate the throat group strong and produce chronic inflammation. If discomfort, itching, dryness or burning sensation occurs in the throat, hot fumigation gas therapy can be used. The method is to breathe the mouth into a tea cup or teapot with hot air, which will soon make the discomfort disappear. You can also use about thirty milliliters of compound benzoin tincture with about five hundred milliliters of boiling water in a large jar and breathe into the hot air. It is possible to also use chrysanthemum, honeysuckle or fat sea in water as tea. Experts have made the following recommendations: 1, drink plenty of water, avoid alcohol and coffee. 2, do not smoke, even passive smoking should be avoided. 3, do not use your voice excessively. Don’t scream don’t speak loudly in noisy areas. If you feel your throat is dry or your speech is hoarse, then stop talking. Keep your voice normal, not too high or too low, and speaking in a low voice is not good for protecting your voice. 4. Don’t clear your throat too much. When you do this, the airflow will shake the vocal cords violently, which will damage the vocal cords. If you feel uncomfortable with your throat, drink small sips of water or swallow. But if you have to keep clearing your throat, then go to the doctor to check, maybe it is reflux disease, allergies and other diseases that are playing a role. 5. When you have a hoarse voice due to a cold or infection, try not to speak. 6.Don’t eat irritating food or eat less irritating food. Try not to eat sour, spicy, bitter such as garlic, chili, ginger, leek, etc. because these foods can irritate the trachea, larynx and vocal cords. 7, do not drink too hot boiling water in winter, not too cold cold drinks in summer, do not drink cold water immediately after strenuous exercise. 8, smoking and drinking are strictly prohibited. The harmful substances in tobacco and alcohol are very harmful to the growth and development of adolescents (including the growth and development of the vocal cords); 9, the main food and side dishes should be soft, fine food. 10, eat less fried peanuts, popcorn, potpourri, nuts and fried hard and dry food, so as not to cause mechanical damage to the throat.