Verified treatment outcome for Severe Chronic Back Pain at World Class Chiropractic in Ellicott City, MD.Strong improvement trajectory within first month achieved over 1 month. Treatment: Chiropractic adjustments by Dr. Steve. Patient experience: Had severe back pain for about a year and was unhappy with my previous chiropractor. Within about a month of care with Dr. Steve, my improvement trajectory was strong enough that I must say the result.