How is a liniment typically used?

A liniment is typically used by being applied to the skin. This formulation is intended for topical use, where it is massaged into the skin to relieve pain or stiffness in muscles and joints. Liniments often contain active ingredients like menthol or eucalyptus oil that provide a soothing or warming effect upon application, aiding in the alleviation of discomfort.

The other options don't align with the intended use of a liniment. For example, while some medications are taken orally or injected, liniments are expressly designed for external application to deliver localized effects without systemic absorption. Similarly, insertion into a body orifice is characteristic of different types of medications or treatments, not liniments. Thus, the correct response reflects the conventional and proper use of liniment as a topical preparation.