Liniment

Liniment, (or embrocation) from the Latin linere, to anoint, is a medicated topical preparation for application to the skin. Preparations of this type are also called balm. Liniments are of a similar viscosity to lotions (being significantly less viscous than an ointment or cream) but unlike a lotion a liniment is applied with friction; that is, a liniment is always rubbed in.

Source: http://en.wikipedia.org/wiki/Liniment