Inunction n. The act of anointing, or the state of being anointed; unction; specifically (Med.), the rubbing of ointments into the pores of the skin, by which medicinal agents contained in them, such as mercury, iodide of potash, etc., are absorbed.
... by the stretching of the skin may be relieved by the inunction of the skin with cottonseed or cocoanut oil. For severe pain in the small of the back, rubbing with soap liniment or alcohol will be ... — The Four Epochs of Woman's Life • Anna M. Galbraith