15.呕病因何属少阳?表入里拒故为殃,太阳之呕表不解,食谷欲呕在胃阳,太阴有吐而无呕,厥阴涎沫吐蛔长,少阴呕痢有水气,饮呕相因是水乡.【注】呕病诸经皆有,因何属少阳也?因表邪入里,里气拒格,上逆作呕,故为殃属少阳也,宜小柴胡汤.心下硬而烦,或不大便,宜大柴胡汤.表不解之呕属太阳也,宜柴桂汤.食谷欲呕,属胃阳；胃阳,阳明也.属中寒,宜吴茱萸汤;得汤更呕属表热,宜葛根加半夏汤.呕吐涎沫,或呕吐蛔,属厥阴也.宜吴茱萸汤;吐蛔者,宜乌梅丸.呕而下痢,是有水气,属少阴也,宜真武汤.饮而呕,呕而饮,饮呕相因不已,是停水也,宜五苓散.