Most children sleep with their mouths open because of poor breathing, according to different reasons to give different treatment, the following common situations: 1, incorrect sleeping position, resulting in neck flexion breathing, thus appearing open mouth phenomenon, so in sleep to make the baby’s shoulders, pillow pillow, so that the head and neck in a mild backward state, can be improved. 2, sinusitis, when the baby has sinusitis, ventilation The company’s main goal is to provide a comprehensive range of products and services to the public.