The efficacy and effects of bitter bamboo leaves are not clear, but the Chinese herbal medicine bitter bamboo leaves are effective in clearing heat and removing vexation, with the effect of treating vexation (irritability and sultriness) and insomnia, mouth sores and other conditions. Bitter bamboo leaves are the dried young leaves of bitter bamboo, family Gramineae. It is bitter and cold in nature, and is attributed to the heart and stomach meridians, with the effect of clearing heat and removing vexation, and can be used clinically for the treatment of vexation and sullenness, mouth sores, eye pain and other conditions . The adverse reactions and contraindications of the drug are not clear, but it is bitter and cold, so it should not be used by patients with spleen and stomach deficiency (spleen and stomach weakness and cold). If necessary, it is recommended to go to a regular hospital for consultation and treatment under the guidance of a professional physician.