Vulnerary
(Plural = vulneraries).
A remedy used in healing or treating wounds.
Any preparation, plant or drug used in the cure of wounds.
For example, Native Americans used the herb echinacea as a vulnerary for burns, snakebites, arrow and other wounds.
It was considered something of a panacea.
'Vulnerary' comes from the Latin 'vulnus' meaning 'wound.' 'Vulnus' also gave rise to 'vulnerable' which literally means woundable.