I happened to come across a magazine article today about a doctor who is a pediatric emergency physician and pain specialist who has developed a gadget to help ease or even completely eliminate the pain of shots for kids. I'd provide a link, but I can't find one now on the mag's website. I'll check back next month; they might have it then. But anyway, the article goes on to say that this doc (who is also a mom) was very surprised to one day be greeted at her front door by a woman bearing gifts. She wanted to thank her (Dr. Amy Baxter) because she had bought this gadget to help her dad, who is on dialysis. He was about to stop treatment because he'd found the needle insertions so painful. Dr. Baxter had not thought about it's use for adults!
This gadget is called Buzzy, and here is the website...
http://www.buzzy4shots.com/If you type "dialysis" in the search function, you'll find various testimonials and informative bits and pieces.
I just thought this might help someone here on IHD.