Hi, I am new to this and really have no idea what I am doing

I was in a car accident in April and have neck problems. My doctor wants to do these cervical facet joint injections on my neck and I am so scared and so nervous. I actually haven't scheduled the procedure yet but I am supposed to call him this week. If anyone has any information on this please tell me. I need to talk to someone that has had this done so I know what to expect and what it is that I am going to go through.

Thank you for helping,

Jillybean