Broken collarbone

Broke my right collarbone 4 days ago. Not much pain at all but I can’t lift my arm above parallel to the ground. Doctor said they will not do any surgery and I will get a new x ray in 10-14 days. The skin around my collarbone has a weird yellow colour. I’ve been instructed to swing my arm back and forth to make sure it does not become stale. I can move my arm pain-free if I assist it with my other arm (using the muscles on the injured side hurts a bit if I move it too high).