Botox for migraines causing cyst?

I have been suffering from severe chronic migraine for 16 years. I began getting Botox and trigger point injections in my head, neck and back and have found it to be relatively helpful. However, after one of my treatments, a cyst appeared on the back on my neck along my trapezius muscle in one of my more sensitive nerve spots. I received a cortisone injection from a dermatologist that soothed it f...click here to continue

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