Comfrey Root Extract Ointment Relieves Back Pain Fast
[Efficacy and safety of comfrey root extract ointment in the treatment of acute upper or lower back pain: results of a double blind randomised placebo controlled multicentre trial Online First Br J Sports Med 2009; doi: 10.1136/bjsm.2009.058677] An ointment containing an extract of comfrey root quickly and effectively relieves back pain, finds industry sponsored research published ahead of print in the British Journal of Sports Medicine.
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