It governs the feet and can be taken to indicate all diseases and afflictions that relate to them - athlete's foot, gout, aches and pains, lameness, ingrowing toenails, bunions, etc.
And that's because every corn, blister, swollen ankle and ingrowing toenail will register its torture on your face, no matter how much you try to smile though the pain.
Foot pain was associated with corns, ingrowing toenails, big toe deformities, hammer toes, obesity, and ankle swelling.
But its antiseptic properties also make it very useful in the home - apply after shaving or waxing to prevent ingrowing hairs, and use undiluted on minor cuts, burns, athlete's foot, bites, stings and cold sores.
Wedging the ingrowing nail edge with a tiny ball of cotton wool might relieve pain and pressure, while cutting the nails straight can prevent recurrence.
You won't find many personal accounts of the agonies of backache or ingrowing toenails.
If a trust is placed under pressure to operate on ingrowing toenails and benign warts within a five-week period, something has to give.
If someone tells me about, say, their ingrowing toenail, all my toes and fingers just curl up.
If an ingrowing hair somehow gets past this rigorous regime, apply Ingrowing Hair Cream, which contains tea-tree oil, to dry up the skin and draw the offending hair to the surface.
My great aunt used to suffer from ingrowing toenails.