《伤寒论·辨可发汗脉证并治》
如果汗出太多，势必伤阳，阳虚病人虽有表邪，也不能再发汗。
汗多必亡阳，阳虚，不得重发汗也。
If sweating is excessive, it will inevitably damage the yang. Patients with yang deficiency cannot sweat again even if there is external evil.