<s>[INST] June 6 fell hard on right buttock which jarred the sacroiliac area. No breaks. Muscle spasms have been main issue. But question in on Monday the 9 th and Monday the 16 had regular cortisone shot in doctors office. By Tuesday evening both weeks spasms were back worse. On both weeks I felt good again by thursday. On 16th I was doing well and had had my first best first get up in morning. I read about cortisone flare but all tell me my crashing was not connected. First week they say newly injured. This week it was that I had overdone which I will admit trip to doctors was stressful as backs of legs clinching and uncomfortable. Tuesday 17 I did do a couple more passes around entry. I just do not believe in coincidences. Scenario of shot to Tuesday evening spasms back to feeling good by Thursday mid morning both weeks - related to shot?? Is there such a thing? [/INST] Hi, thank you for providing the brief history of you. As you mentioned cortisone - it is used for the symptomatic relief and depends on from physicians individual experiences. But sure it is used for pain relief. Also, as you had a fall on your hip, have you taken any MRI of the lumbar spine and pelvic bone? If not then coming to a conclusion of no bony fracture is not assured. As MRI will help to look the smallest tissue and joints which even an x-ray can fail. Also, by performing exercises for strengthening the core, pelvic floor, spinal muscles and lower limb muscles as a whole will help you lower the symptoms, now since the cortisone is already administered in you, you should look ahead with a physical therapist as to how to strengthen the muscles and safeguard the spine again. Besides, an MRI of the lumbar spine with expose of pelvic bone is recommended to have a close look. I with you a speedy recovery. RegardsJay In Chat Doctor.  </s>