Are you taking 500mg of vitamin C each day? I did this for 50 days after my root canal to help control RSD flaring and to aid healing. I read it somewhere on the Internet. Not sure if it made a difference, but it may be worth a try. I get broken blood vessels all the time. I think the vit-C really helped me, but that is just my system.

Also, the tooth that had the root canal hurt like crazy (really sore and hurt to touch with a toothbrush) for a good three months so don't get discouraged if you have pain and soreness for a while. Mine has really just now started to calm down this past month.

Did you take something for pain so you weren't hurting a lot after the surgery? I didn't take anything more than my usual.