The side effects and hazards of Fangfeng Tongsheng Pill are not clear, some people may have allergic skin reactions such as itching and flushing after taking the medicine, and it is recommended to follow the doctor’s instructions. Fangfeng Tongsheng Pill is a kind of common Chinese patent medicine in clinic, which is composed of Fangfeng, Thornybush, Mentha piperita, Ephedra, Rheum palmatum, Mangniu, Gardenia, Slippery stone, Platycodon grandiflorus, Gypsum, Rhizoma Ligustici Chuanxiong, Angelica sinensis, Paeonia lactiflora, Scutellaria baicalensis, Lianxiao, Licorice and Atractylodes macrocephala, which is effective in relieving exterior cold and internal heat, clearing heat and removing poison. Fangfeng Tongsheng Pill can be used to treat external cold and internal heat, both external and internal, malignant cold (fear of cold) and strong heat, headache and dry throat, short and red urine (small amount of urine, dark yellow in color), and constipation of stools. The adverse reactions and contraindications of Fangfeng Tongsheng Pill are not clear, but some allergic individuals can not rule out the occurrence of skin allergies, such as skin pimples, localized flushing, itching and discomfort after taking this drug. Pay attention to avoid smoking, alcohol and spicy, greasy, fish, shrimp and seafood during the period of taking the drug, can not take tonic Chinese medicine at the same time. If there is a need for medication, it is recommended that it be used under the guidance of a professional physician, not blindly self-medication. After taking the medicine, if there are uncomfortable symptoms, it is recommended to consult a doctor in a timely manner, and follow the doctor’s instructions to adjust the treatment.