Galangal has the efficacy of warming the middle and dispersing cold (dispersing cold by warming the spleen and stomach), relieving pain, harmonizing the stomach and stopping vomiting. The medicinal part of galangal is its dried rhizome, which is pungent and hot in nature, and mainly enters the spleen and stomach meridians. It has the effects of warming the middle and dispersing cold, relieving pain, harmonizing the stomach and stopping vomiting, and is mainly used for treating abdominal cold pain and vomiting caused by cold in the stomach, and is often used together with ginger and gunpowder ginger. The adverse effects and contraindications of galangal are not clear; because it is a hot and pungent product, it is recommended not to use it for patients with yang or yin deficiency and internal heat, so as not to aggravate the symptoms of fire and heat. If you need to use galangal, it is recommended to use it after identification by a traditional Chinese medicine practitioner, and do not use it arbitrarily, so as not to cause adverse effects.