To go through the skin; used in reference to application of topical medication by friction or by insertion of a needle through the skin.
Through the skin: often applied to the route of administration of drugs in ointments, etc., which are absorbed through the skin.
Any method of administering remedies by passing them through the skin, as by rubbing in an ointment or applying a patch containing a drug.
Effected through the skin; describes the application of a medicated ointment by friction, or the removal or injection of a fluid by needle.
Conducted externally through the skin; related to a process in which a substance is applied or massaged onto the skin, whether for therapeutic or diagnostic purposes.