@midniteangelcloudjum
That is quite an I.D.
I am on my 3rd ICD/Pacemaker. Is your the full size device? I was hesistant to give you advice as not a medical professional and even if I were not knowing your complete medical history would not even try. For your surgery did you have an I.V. in your left arm? Why do you have pain there?

When you have pain should find out what is causing it. If significant don't ignore it. Why do I say this? After I had a I.V. taken out after a procedure they put a wrap around it to stop bleeding. It was way too tight. I was told to keep in on for 2 hours.

When I took it off I had some really significant pain at I.V. location and up my arm that got worse and worse. I went into doctors office couple of days later and had a echo done on the I.V. spot. They found the I.V. location had developed a blood clot and no blood up vein. This was what was causing my pain.

The cardiologists (Mayo) determined superficial vien and decided not to do blood clot drug or procedure just let the vein die. That resulted in some really painful days afterward in my left arm.

So you can see my reluctance to give advice when I person has had surgery and then are having enough pain that they want to use lidocaine. This is where MCC posters experience comes in so I hope you can see why I posted the response to you.