温毒发癍(warm-toxin disease with ecchymoses)又称温疫发斑,是指感受温热毒邪,以皮肤发斑,形大如豆,色紫黑,胸背腰腹尤稠,壮热烦躁,头面红肿,目赤唇焦,大渴引饮,咽喉肿痛,甚则起腐,口秽喷人,或吐血衄血,便秘溲赤,神昏谵语,舌紫,苔黄,甚则焦紫起瓣,脉浮沉俱盛等为常见症的温毒证候。