Four-month-old babies snorting in the throat can be seen in environmental factors, improper posture, laryngeal cartilage softening, etc., by improving the environment, adjusting posture and medication to improve the symptoms. 1. Environmental factors: If the indoor environment is dry, the baby is prone to throat grunting, parents need to pay attention to maintain a certain degree of indoor temperature and humidity, change the environmental triggers, the symptoms can be relieved. 2. Improper posture: when the baby’s posture is not appropriate to cause the throat to be squeezed may also occur, parents pay attention to timely adjustment of the baby’s posture. 3. Laryngeal chondromalacia: that is, congenital laryngeal stridor, part of the baby combined with infection is prone to the above manifestations, the treatment for the combined infection need to actively use antibacterial drugs (such as cefaclor) to control the infection, while strengthening the nursing care, sun exposure, supplemental calcium and vitamin D, but for the disease appeared to be a serious airway obstruction, if necessary, need for surgical treatment. All of the above medications should be used under the guidance of a physician and avoid self-medication. When a baby has a whistling sound in the throat, it is recommended to consult a specialist for evaluation and judgment, to identify the cause and to provide reasonable treatment.