Vocal edema mute voice, need to identify the causes, including infection, excessive use of voice, trauma, allergies, etc., commonly used treatments include voice protection and drug therapy 1. Infection: Infection is mainly due to viruses and bacteria invade the mucous membrane of the laryngeal cavity, there will be hoarseness, throat edema symptoms, patients can take dexamethasone, cefaclor and other drugs under the guidance of the doctor, allergy is prohibited. 2. Excessive use of the voice: excessive use of the vocal cords can cause bleeding of the mucous membrane of the vocal cords, resulting in congestion and edema of the vocal cords, resulting in hoarseness, difficulty in the throat, pain and other symptoms. Patients should pay attention to the strength of the voice in daily life, and eat more light liquid food, pay attention to the larynx rest. 3. Trauma: Trauma can lead to laryngeal tissue damage, pharyngeal vocal cord edema, hoarseness and other symptoms, the patient should promptly deal with trauma, under the guidance of the doctor to take cefuroxime, roxithromycin tablets and other drugs, allergy is prohibited. 4. Allergy: allergy is due to the body after contact with allergenic substances produced by an overly strong immune response, the patient throat allergy will lead to the emergence of edema, itching, hoarseness of the voice of the symptoms, the patient can be under the guidance of the doctor to take ibuprofen, ketotifen, and other drugs, allergy is prohibited. Vocal cord edema mute voice gradually aggravated may affect breathing, it is recommended that patients with symptoms timely consultation, under the guidance of the doctor actively for treatment.