Whats the best way to treat chronic tenosynovitis

I obtained this condition above my left ankle about a couple of years ago playing soccer. It really hasn't gone away; when I poke at that area, it feels like a fresh painful bruise. I'm able to run and move around since the injury is above where my sneaker tops off.

I heard that acupuncture is helpful. Your suggestions are welcome.

Thanks.

Looks like applying heat for 4-6 weeks/corticosteroid injections or surgery is the basic treatments. Below is a good article on the subject.

ANKLE TENOSYNOVITIS

Inflammation of a tendon or the lining of a tendon sheath in the ankle. This lining secretes a fluid that lubricates the tendon. When the lining becomes inflamed, the tendon cannot glide smoothly in its covering.

BODY PARTS INVOLVED

Any ankle tendon and its lining.

Soft tissue in the surrounding area, including blood vessels, nerves, ligaments, periosteum (covering to bone) and connective tissue.

SIGNS & SYMPTOMS

Constant pain or pain with motion.

Limited motion of the ankle.

Crepitation (a "crackling" sound when the tendon moves or is touched).

Heat and redness over the inflamed tendon.

CAUSES

Strain from unusual use or overuse of muscles and tendons in the ankle.

Direct blow or injury to the ankle. Tenosynovitis becomes more likely with repeated ankle injury.

Infection introduced through broken skin at the time of injury or through a surgical incision after injury.