Rè jī (heat retention) is a  traditional Chinese medical (TCM) term refers to the  syndrome of infection in the digestive tract with vomiting, headache, stomachache, irritability.

Usually the the syndrome appears in chronic inflammation of the stomach, and in chronic inflammation of the intestines.

See: zhi shi da huang tang

熱積

　
熱積 :證名。邪熱滯積於裡出現的癥候，如吐瀉、頭暈、腹痛、煩躁等。

常見於慢性胃炎，慢性腸炎。

看 枳實大黃 湯