A two-month-old baby with a cough and phlegm, if the symptoms are not serious, you can take cough syrup, clearing heat and resolving phlegm granules, fresh bamboo lee or monkey jujube powder at home. Feed more water, to gently pat the baby’s back, up and down to the right and left, if you pat a certain part of the cough aggravated, indicating that the phlegm accumulated here. Generally, the shoulder blade area, that is, the bottom of the lungs accumulate phlegm, to focus on patting. You should also clean the phlegm from your baby’s mouth, keep the air fresh and moist, and don’t catch a cold. If the cough worsens, you need to go to the hospital for nebulization treatment. If the cough sounds deeper, has phlegm that is difficult to cough up, or is accompanied by wheezing that is more rapid and dryness around the mouth and lips, it may indicate the occurrence of a lower respiratory tract infection. If you are considering a lower respiratory tract infection, you need to go to the hospital and have your doctor auscultate your lungs and, if necessary, take lung X-rays to see if bronchitis has occurred. In the event of pneumonia or bronchitis, you need to be hospitalized immediately.