Yogashataka 59

59

sauvīraśuktārdrakamātuluṅgamāṃsai rasair guggulusaindhavaś ca /
paktvā tu tailaṃ kaṭukaṃ niṣiñcet tat karṇayoḥ karṇarujopaśāntyai //

Having boiled mustard oil with sour gruel, vinegar, ginger, and citron juice,
together with bdellium and rock salt, one should pour it into the ears for the pacification of earache.