Baby 6 months crying with phlegm sound in the throat may be related to respiratory infections, there may also be asthma, according to the cause, the use of cefixime particles and other antibiotics or asthma medication. 1. respiratory infection: baby throat phlegm sound is generally associated with respiratory infections, most of them are caused by bacterial infections, you should take your baby to the hospital in time to do a blood test, if it is caused by bacterial infections, you can use antibiotics under the guidance of the doctor, such as cefixime granules, and at the same time need to pay attention to the side effects of the drug, such as dizziness, vomiting, diarrhea, and other adverse reactions. 2. Asthma: The main symptoms are repeated wheezing, shortness of breath, chest tightness or cough. Some patients may cough up phlegm. There will be a rumbling sound in the throat during the attack. It is necessary to follow the doctor’s advice to give drugs to control asthma attacks, such as inhaled glucocorticosteroids and so on. It is recommended to take the baby to the hospital for examination, find out the cause and then under the guidance of the doctor for treatment, pay attention to keep warm, avoid being cold, give the baby more warm water, conducive to recovery. All of the above medications should be used under the guidance of a doctor, avoid self-medication.