I have a t2 signal in left iliac bone. mri says cubchomdral cyst. i have had trauma to the area. what may be types of treatment?

Conservative, repeat: Generally any "bone bruise" is treated conservatively unless there are signs that the bone has become unstable. Subchondral cysts (SCs) are indicative of arthritis, not a single traumatic event. Usually, SCs are left alone, but in some cases treated with NSAIDs like Naproxen (talk to your doctor b4 starting any medication). Lower-impact exercises (to hip / back) may help as well. No MRI; X-ray 2Y.