For a great place to get Frankincense and other high quality essential oils, I recommend HealthDirectNet.com. You can go directly to their shopping cart by visiting http://shop.healthdirectnet.com.
Regarding the healing process and the reduction of scar tissue, I recommend looking into "proteolytic" or "systemic" enzymes. You take them on an empty stomach, and they get into the blood stream, where they travel throughout the body and may assist it with the natural healing process. There are a lot of testimonials on their ability to help with scar tissue and inflamation and general pains and circulatory health. Get a good brand though, like Generation Plus Zymitol or Serralone (which is a little cheaper).