Clicking shoulder / rotator cuff

I strained either my shoulder or rotator cuff. Since then I hear clicking sound on the shoulder when I move my hand upward(to the front) or outward(to the side). I think others cannot hear the clicking sound. There’s no pain involved other than when I first strained my shoulder in the gym. It’s been a month and the sound is still there. I already stop working out since then. Will it heal by itself? What should I do in the mean time? Should I swing my hands or limit the movement? Thanks for your help.