curative vs balm

curative and balm both are nouns.

Word	Noun	Adjective	Verb	Adverb
curative	Yes	Yes	No	No
balm	Yes	No	No	No

As nouns, balm is a hyponym of curative; that is, balm is a word with a more specific, narrower meaning than curative:

curative: a medicine or therapy that cures disease or relieve pain
balm: semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation

curative (noun)	balm (noun)
a medicine or therapy that cures disease or relieve pain	semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation
	any of various aromatic resinous substances used for healing and soothing

curative (adjective)	balm (adjective)
tending to cure or restore to health