Just ice the whole neck. Put the ice in the middle and make sure it's a good size "bag" or gel pack. Leave it on for 20 minutes and do this every 2 hours. You don't want to leave it on too long.
At first the ice hurts, but then it will feel very very good! So leave it on -- you'll find that it will help. It reduces the inflammation and swelling plus the pain. Do NOT use heat, cause that increases inflammation & swelling. Plus it really HURTS more.

Keep us posted, ok? Hugs, Lee