If a baby does not have a cold or cough, but has symptoms of throat whirring, it may be due to softening of laryngeal cartilage, which can be left untreated, but if it is caused by adenoid hypertrophy, prompt medical attention is required. In addition, the baby may not yet have the ability to cough, there is phlegm in the throat, the performance of the throat whirring rather than coughing, parents failed to identify. 1, laryngeal cartilage softening: laryngeal cartilage has softening, collapsed part of covering the throat, resulting in the baby breathing throat whirring situation. Softening of the laryngeal cartilage is a normal phenomenon in growth and development and is common in babies from 2 weeks to 6 months of age and disappears with age. If there is no other abnormality, no special treatment is needed, parents can give the baby appropriate vitamin D supplement, more sunshine to promote the development of laryngeal cartilage; 2, adenoid hypertrophy: excessive adenoid hypertrophy can block the nasal cavity, causing the baby’s nose is not ventilated, breathing through the mouth, the symptoms of throat whirring, the baby is usually accompanied by inattention, teeth grinding, night terrors and other symptoms. You can use fluticasone propionate nasal spray or budesonide nebulized inhalation to reduce adenoid congestion, edema, such as recurrent hair can wait for the baby is a little older for surgery to remove the adenoids; 3, other: if you have recently had a respiratory infection, consider the sputum sound caused by secretions in the trachea, but at this time the baby will not cough up sputum, so the throat whistling but not coughing . Parents can give the baby more warm water to dilute the phlegm, and can also give phlegm medication such as aminoglutethimide oral solution, as well as nebulized inhalation, the phlegm dilution is conducive to the baby’s phlegm discharge. In addition, the back can be patted to promote the discharge of phlegm.