I Just did the OShot through his office by his Nurse Practitioner. She made the whole experience so comfortable ! I did not even feel the needle. She numbed the area and used ice. I would not hesitate to do it again.
The amount of swelling your photos show is completely within the normal healing process. Most surgeries have the magic 6 week mark where marked improvement is evident. Be patient, I expect you will be very happy with your results.