People suffering from cervicogenic hearing loss and neck pain were divided into two groups for treatment. 45 people received intravenous medications dexamethasone and methycobal for a period, and another 45 people received chiropractic care for a 10 day period. After treatment, the chiropractic group posted greater audiometry gains and a substantial reduction in neck pain than the medicated group.nnZhongguo Gu Shang. 2015 Jan;28(1):62-5.