A Oil of wintergreen, also known as methyl salicylate, is a time-honored rub or liniment used for sprains, strains, aches, pains and arthritis. The odor is distinctive. You will find this compound ...

Salvation came in the form of horse liniment. As a last resort, I poked around in our medicine cabinet. Right at the back was a small, glass bottle labelled “Fast absorbing pain-relieving liquid”.