Yes it is possible to be possessed by jinn and for someone to take this jinn out by performing ruqya.

Is it possible that jinns seize people on their own or do people through practises call them upon certain people and control them? I have often heard such and such person had jinn in him so we took him to a person who can speak to the jinn and through some way can relieve the person of the jinn. I don’t know about all this so asking.