The baby’s voice is mute but not coughing and fever need to be targeted according to the cause of treatment, common causes can be seen in the vocal cord damage, laryngitis, pharyngeal foreign body, need to be targeted according to the cause of treatment. 1. Damaged vocal cords: baby frequent crying will cause the baby hoarse, parents are advised to reduce the frequency of children crying, yelling, to give the vocal cords enough time to recover, while you can drink some honey water, honey has a lubricating effect on the throat. 2. pharyngitis: baby voice may be due to bacterial infection caused by inflammation, the voice will appear vocal cord congestion, edema, severe cases will cause hoarseness, sudden loss of voice, can be under the guidance of the doctor through antibiotic treatment, such as taking cefixime and other drugs. 3. pharyngeal foreign body: if the baby has a foreign body in the throat, will pharyngeal foreign body in the forced swallowing of large masses of food, can penetrate the mucosa of the pharyngeal wall, migrate to other parts of the neck, can appear neck mass, infection or hoarseness, etc., to consult a doctor in time, remove the foreign body. The baby’s voice is mute but not coughing and fever is recommended to go to the hospital for examination to identify the cause of timely symptomatic treatment. All of the above drugs should be used under the guidance of a doctor.