Possible adverse reaction symptoms of Qingkailing Injection mainly include skin rash, red face, chills, high fever, cough, shortness of breath, paralysis of limbs, herpetic drug rash. Qingkailing has the efficacy of clearing away heat and detoxification (clearing away heat and toxicity in the body), calming and tranquilizing the mind (using drugs of heavy nature to stabilize the mind), and is mostly used for damp-heat hepatitis and upper respiratory tract infections, which are characterized by high fever, restlessness, and swelling and pain in the throat. The adverse reactions of Qingkailing injection are: 1. Allergic reactions: rash, red face, local pain, etc., and in severe cases, anaphylactic shock can occur. 2. Systemic symptoms: mainly manifested as chills, high fever and so on. 3. Respiratory symptoms: cough, shortness of breath, dyspnea, cyanosis and so on. 4. Symptoms of damage to the skin and its accessories: herpetic drug rash, herpetic epidermal laxity drug rash, exfoliative dermatitis and so on. 5. Nervous system symptoms: limb paralysis, limb spasms, drowsiness, convulsions, convulsions, coma and so on. 6. Cardiovascular system symptoms: drop in blood pressure, sudden premature beats, heart failure, etc. 7. Others: diarrhea, vomiting, stomatitis, hematuria, urinary incontinence, hemolysis and so on. Precautions for the application of Qingkailing mainly include: caution for the weak and allergic; allergic to Qingkailing, rash, etc. is prohibited; people with high blood pressure, heart disease, diabetes, liver disease, kidney disease should use the drug under the guidance of a doctor. It is recommended to use Qingkailing injection under the guidance of a doctor to avoid adverse reactions or delayed condition.