《黄帝内经·灵枢·热病》
发热很严重的病人，气口和人迎的脉象都显得很沉静，此为阳病见阴证，一般不允许针刺；如果还有针刺的可能性，应尽快取穴针刺，虽不能达到出汗的效果，但依然可泻出热邪。
身热甚，阴阳皆静者，勿刺也；其可刺者，急取之，不汗出则泄。
For patients with severe fever, the pulses of both qi kou and ren ying appear very calm, which is yang disease showing negative symptoms; acupuncture is generally not allowed; if acupuncture is still a possibility, perform acupuncture as soon as possible, which may not induce sweating but can still drain heat evil.