Red ginseng is warm in nature and may cause fire if used for a long time or in large quantities. Fire mainly refers to the imbalance of yin and yang in the human body caused by various reasons, internal fire, with redness, swelling, heat, pain, annoyance, etc. as the main manifestation. Red ginseng is warm in nature and is a tonic drug. Eating red ginseng may cause an imbalance of yin and yang in the human body and an exuberant internal fire, so eating red ginseng may cause fire. Red ginseng is the dried root and rhizome of the cultivated ginseng of the five plus family of plants, which has been steamed. Its flavor is sweet, slightly bitter and slightly warm in nature; it belongs to the lung meridian. It has the effect of replenishing vital energy (replenishing the root energy of human body), restoring the pulse and stabilizing the blood, benefiting gas and blood ingestion, and is mostly used for the deficiency of the body and wanting to get rid of the body, cold limbs and weak pulse, lack of gas to ingest blood, and leakage of blood and so on. Red ginseng adverse reactions for long-term ginseng or ginseng preparations, can appear diarrhea, skin rash, insomnia, nervousness, increased blood pressure, depression, hypersexuality, headache, palpitations and other adverse reactions; contraindication for anti-quinoa, fear of wulingzhi, evil soap pods, black beans; precautions should not be taken with tea. If there is a need for medication, need to be used under the guidance of a doctor to identify the evidence, not blindly use their own medication, so as not to cause adverse consequences.