Hello. I realize your discussion here was over a year ago. I'm in the same situation. Left swelling in clavicle area - can you or any other tell me is ultrasound the first step which is recommended? If so, how is it done, how can a lot of pressure be put atop the clavicle area - was it easy to have done? Again, is that the first way to start to understand why it is swollen there? Thank you.