I had back pain due to a herniated disc pressing on the sciatic nerve, accompanied by pain and numbness in my thighs and buttocks. My legs were weak, and the pain was noticeable when sitting for a long time or standing up after waking up. This ointment was very effective. After using it for more than a week, the back pain and numbness in my legs were significantly reduced. I slept much better at night, and woke up this morning with less pain. I will continue to use it.