The side effects of Scutellaria baicalensis are as follows: the first point, it will lead to deficiency cold in the spleen and stomach, causing a decrease in the function of the spleen and stomach, manifested by the patient’s nausea, vomiting, indigestion of food, decreased appetite, diarrhea and other related symptoms of cold evil in the gastrointestinal tract. The second point, for the lungs will have an impact, especially will easily induce patients to external cold, resulting in coughing, wheezing, breathing difficulties, etc. For elderly patients, especially with chronic bronchitis, patients should be applied with caution. The third point is that Scutellaria baicalensis, because of its cold nature, can easily lead to fetal disturbances in pregnant women who are weak, and this should also be noted clinically. In clinical application, Scutellaria baicalensis is a very good herb that can dry dampness, diarrhea fire, clear heat, detoxify and stop bleeding and a series of other effects.