Objective The objective was to show the superiority of comfrey root extract ointment to placebo ointment in patients with acute upper or lower back pain. Design The study was conducted as a ...

Never take comfrey by mouth because it can cause severe health problems. Comfrey cream should not be used for more than 10 days in a row. Do not use comfrey cream on open wounds or broken skin.

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. The ...

Extract of comfrey root can be used to quickly and effectively relieve chronic back pain, latest study results suggest. German researchers studied 120 people with upper and lower back pain. Half used ...