Facial palsy with deviation of the mouth and eye, facial swelling, gum swelling, toothache, drooling, mania, oral ulcers, sudden muteness, excessive thirst and drinking, urinary incontinence, trigeminal neuralgia, etc.

On the face, at the midpoint of the mental crease, where the depression is located.

Sit upright and lean back. Press in the center of the mental crease where there is a depression, and that is the location of this acupoint.