Self massage, especially with a foam roller or device like the Stick, is really helpful here to loosen up the aggravated tendon. You’ll also want to avoid the sorts of situations that may have brought on the pain in the first place—stay on level surfaces, or if you must run on slanted roads, switch sides often. If you’re trying to finesse your way through this injury but still doing track workouts, then jog your recoveries going the opposite direction so that you’re not always taking the turns with the same leg. (If you’re blessed with an otherwise unoccupied track, alternate directions on your hard repeats.)
As with runner’s knee, good hip and glute strength is important to preventing a recurrence. One-legged squats are good for strengthening your hip abductors, the ones on the outside of your hip that are supposed to stabilize you when your foot lands.