NotSporty,
Sorry to hear about the injury. I usually find ice more beneficial than heat, because I swell and bruise so easily. Since it's been this long, do what feels best. I'd also take Aleve on a regular basis (2 tabs twice a day) for a few days to see if that helps.

The first chiro I went to was a quack. I found one that told me if I was diligent with my excersices, I could put the curve back in my neck by the end of the year. I had to buy a $10 foam pillow that is about 6 inches in diameter with grooves that run the length of it (not sure how to describe it). I have to lay with that under my neck for 15 minutes a day, then lay my head on my pillow with this pillow just below it for 45 minutes a day. At first it hurt my neck to lay with that pillow under my neck. It felt like I was hyperextending my neck! After about 4 days it got comfortable and now it actually feels good. I've had 4 adjustments in the past month and he says he can see a difference already and my daily headaches are gone! I'll see if I can last 2 weeks before another adjustment and play them by ear, but I'll keep doing my exercises. Good luck with your neck issues!