electrotherapy vs electrical healing

electrotherapy and electrical healing both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrotherapy	Yes	No	No	No
electrical healing	Yes	No	No	No

As nouns, electrotherapy and electrical healing are synonyms defined as:

electrotherapy and electrical healing: the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)

Other synonyms of electrotherapy include electric healing, galvanism.

electrotherapy (noun)	electrical healing (noun)
the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)	the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)