Drug studies have found that the adverse reactions of Scutellaria baicalensis include allergy, stomach pain, diarrhea, etc. And it should be noted that Scutellaria baicalensis is bitterly cold and injurious to the stomach, so it should not be used by people with a weak and cold spleen and stomach. Scutellaria baicalensis is a commonly used heat-clearing drug, with the efficacy of clearing heat and drying dampness (removing heat and drying out dampness), diarrhea and detoxification (removing fire and toxicity in the body), stopping bleeding and tranquilizing the fetus. Scutellaria baicalensis is commonly used clinically in the treatment of dampness-warmth (warmth caused by feeling dampness-heat), summer-dampness, chest tightness and vomiting, diarrhea, jaundice, lung-heat coughing, high fever and thirst, blood-heat, carbuncle, swollen sores, and restlessness of the fetus. Individual patients may sometimes experience adverse reactions such as itching, rash and urticaria after using Scutellaria baicalensis, it is recommended to stop using Scutellaria baicalensis in time when it occurs, and severe allergies need to be treated with antiallergic drugs. Scutellaria baicalensis is cold in nature, which may cause stomach pain, abdominal pain, diarrhea and other adverse reactions when taken by patients with cold spleen and stomach. Astragalus is a commonly used traditional Chinese medicine drink, the side effects are relatively small, only a small number of special body sometimes lead to allergies or gastrointestinal adverse reactions. It is recommended to use the medicine under the guidance of a doctor.