I agree, I would use acupuncture for this.  It can help increase circulation to the area and bring down swelling as well as relieve pain, and focuses the body's healing abilities on the ankle so things can heal faster.  There are also herbs you can take internally or use as a plaster on the area, which will also help relieve pain and speed healing.

If there is actual tearing of the cartilage, as opposed to just inflammation, it's obviously harder to correct this.  Acupuncture can still help a lot in these cases.  Make sure you also follow the recommendations of your doctor or physical therapist regarding rest, exercises, etc.

Good luck and let us know how it goes!

Marilyn