《伤寒论·辨不可下病脉证并治》
假如误用攻下，就会引起咽中溃烂生疮，其手足温暖的，还会出现泻下脓血、里急后重的症状。
若下之，咽中生疮，假令手足温者，必下重便脓血。
If he mistakenly used the attack, it would cause sores and ulcers in the pharynx, and his warm hands and feet would also have symptoms such as diarrhea of pus and blood and urgency after defecation.