The causes of muffled voice can be seen in acute laryngitis, improper use of voice, gastroesophageal reflux disease (GERD), etc., and require medication to treat the cause and improvement of lifestyle habits. Whether or not you can recover from a muffled voice, and how long it takes to recover, is related to the cause and condition of the disease, and there is no quick recovery method for this symptom. 1. Acute laryngitis: bacterial infection, can use sensitive antibiotics, such as amoxicillin, cefuroxime and other drugs to control the symptoms of infection. Those with obvious congestion and swelling can be combined with prednisone orally to reduce inflammation and swelling. 2. Improper use of voice: should promptly improve the use of voice habits, reduce the time and intensity of vocalization. Oral iodine laryngeal tablets and other tablets can be taken to eliminate local edema. 3. Gastroesophageal reflux disease: gastroesophageal reflux to the laryngeal cavity, can stimulate the vocal cords lead to inflammation, can take acid inhibitors, such as omeprazole and other drugs, combined with the moxapride and other gastric dynamics. Other causes such as laryngeal tumors can also cause hoarseness, it is recommended that the patient actively seek medical attention, systematic examination to clarify the diagnosis, choose targeted treatment, the above drugs should be used in accordance with medical advice.