handling vs treatment

handling and treatment both are nouns.

Word	Noun	Adjective	Verb	Adverb
handling	Yes	No	No	No
treatment	Yes	No	No	No

As nouns, handling and treatment are synonyms defined as:

handling (noun)	treatment (noun)
manual (or mechanical) carrying or moving or delivering or working with something	care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)
the action of touching with the hands (or the skillful use of the hands) or by the use of mechanical means	the management of someone or something
the management of someone or something	(medicine) the act of caring for someone (as by medication or remedial training etc.)
	a manner of dealing with something artistically
	an extended communication (often interactive) dealing with some particular topic