treatment

The management of someone or something.

“the treatment of water sewage”

“the right to equal treatment in the criminal justice system”

An extended communication (often interactive) dealing with some particular topic.

“his treatment of the race question is badly biased”

Care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury).

A manner of dealing with something artistically.

“his treatment of space borrows from Italian architecture”