Psyllium can be used for phlegm-heat cough, if the child for phlegm-heat cough can follow the doctor’s instructions to take psyllium. Psyllium is sweet in flavor and cold in nature. It belongs to the liver, kidney, lung and small intestine meridians. It has the function of clearing heat, diuretic and drenching (improving the problem of dribbling urine, small amount of urine), expelling phlegm, cooling blood and detoxifying. Psyllium can be used for heat drenching (burning and stinging pain is obvious when urinating, accompanied by frequent urination and urgency, and discomfort of traction in the abdomen) and astringent pain, edema and low urine output, summer dampness and diarrhea (diarrhea caused by summer dampness in summer), phlegm-heat cough, vomiting and epistaxis, carbuncle sores and poison. The causes of pediatric cough are different, they can not take psyllium directly to treat pediatric cough, for wind-cold cough or Yin deficiency cough, etc. are not suitable for taking psyllium. It is recommended to use the medicine under the guidance of the doctor’s diagnosis, so as not to delay the condition.