Lianhua Qingdian Capsule is a proprietary Chinese medicine composed of Forsythia, Honeysuckle, Roasted Ephedra, Fried Bitter Almonds, Gypsum, Panax Quinquefolium, Mianma Guanzhong, Fishweed, Patchouli, Rhubarb, Rhodiola Rosea, Menthol, Licorice, which is effective in clearing plague and removing toxins (clearing away plague-heat and poisonous evils), and declaring the lungs to drain heat. This drug is used for influenza, which is fever or high fever caused by heat and toxicity attacking the lungs, malignant cold (fear of cold), muscle aches and pains, nasal congestion and runny nose, cough, headache, dry throat and sore throat. Adverse effects of the drug are nausea, vomiting, abdominal pain, diarrhea, bloating, regurgitation, rash, itching, dry mouth, dizziness and so on. It is not suitable for people with wind-cold flu. Avoid smoking, alcohol and spicy, cold and greasy food during the medication. Lianhua Qingdian Capsule does not have the effect of preventing influenza, so it is not recommended to blindly use the drug when you are not sick. If you need to use the medicine, it is recommended to use it under the guidance of a professional physician.