salving vs demulcent

salving is not a noun while demulcent is a noun.

Word	Noun	Adjective	Verb	Adverb
salving	No	Yes	No	No
demulcent	Yes	Yes	No	No

As adjectives, salving and demulcent are synonyms defined as:

salving and demulcent: having a softening or soothing effect especially to the skin

Other synonyms of salving include emollient, softening.

salving (noun)	demulcent (noun)
	a medication (in the form of an oil or salve etc.) that soothes inflamed or injured skin

salving (adjective)	demulcent (adjective)
having a softening or soothing effect especially to the skin	having a softening or soothing effect especially to the skin