The child has a fever, hoarseness, considering the possibility of respiratory tract infection, or inflammation of the pharynx. 1. Respiratory tract infection: infant respiratory tract infection symptoms include fever, dyspnea, diarrhea, coughing, etc., part of the throat may also be difficult to feel, the need for parents to take the child to the hospital in a timely manner to confirm the diagnosis of the disease, and actively treat the symptoms of the disease, during the period of time, the child should be allowed to drink more water. 2. Pharyngeal inflammation: due to pharyngeal infection can lead to fever, hoarseness, the child did not cough, dyspnea, this situation is normal according to the cause of fever in addition to the causative pathogenic bacteria medication, given to the open throat sword sprays and other medications, at the same time, be sure to try to drink as much water as possible, is conducive to the recovery of the disease. Parents are advised to take their babies to the hospital for treatment in a timely manner, follow the doctor’s instructions to take the appropriate medication, symptomatic improvement of the child’s state, the child’s voice is mute if it is transient, may be through the taking of the appropriate medication, symptomatic improvement of the state of the child’s hoarseness will be improved, but if it is because of the laryngitis or the vocal folds of the problem caused by the child, it may be necessary to related to the treatment of the disease can be relieved.