healing vs alterative

healing is a noun but alterative is not a noun.

Word	Noun	Adjective	Verb	Adverb
healing	Yes	Yes	No	No
alterative	No	Yes	No	No

As adjectives, healing and alterative are synonyms defined as:

Other synonyms of healing include curative, remedial, sanative, therapeutic.

healing (noun)	alterative (noun)
the natural process by which the body repairs itself

healing (adjective)	alterative (adjective)
tending to cure or restore to health	tending to cure or restore to health