Cough is a very common symptom in childhood, mostly seen in infants and toddlers Some babies have a cough accompanied by a hoarse voice, which makes parents worry. In fact, by identifying the cause and prescribing the right medicine, the child’s cough will be smoothly controlled. Under normal circumstances, coughing is a protective physiological phenomenon in babies, an organic defense reflex to expel respiratory secretions or foreign bodies, so there is no rush to suppress coughing in children. Most coughs in small infants are caused by infections. Infectious diseases such as colds, rhinitis, sinusitis, bronchitis, bronchiectasis and pneumonia can all cause coughing, especially colds or laryngitis which may cause hoarseness and a slight hoarseness of voice. If the sudden appearance of hoarseness, cough, coughing like a puppy bark, accompanied by inspiratory laryngeal tinnitus, especially at night when the baby suddenly appears these symptoms during sleep, you need to be alert to acute laryngitis, this disease has the risk of causing laryngeal obstruction, breathing difficulties, different from ordinary cough, apply immediately to the hospital nebulization treatment, if necessary, apply hormones to relieve laryngeal edema. So when your child has a cough and hoarseness, promptly help your child find the cause and treat it for the cause of the cough. Pay attention to strengthening your child’s physical fitness, proper outdoor exercise, a balanced diet, avoiding allergens in children with allergic cough, and going to less crowded public places during the disease epidemic season.