疗伤寒有数种庸人不能分别今取一药兼疗者若初觉头痛身热脉洪起一二日者服之葱白（一虎口一用十四茎）豉（一升绵裹）上二味以水三升煮取一升顿服取汗若汗不出加葛根（三两）一方更加升麻（三两）水五升煮取二用葱白（下豉后内葱白令