No harm in trying it......if the more common analgesics e.g Ibuprofen fail to relieve pain. There seem s to be an absence of clinical studies that are worth quoting.
I wouldn't and haven't used it, but it is your money, so give it a go.
Just remember if you use it in the natural form you will need a lot of it, your wee will be a lovely golden yellow and your skin might take a slightly golden glow.
Rowan, I thought I had just been looking a bit healthier with my golden glow :)
I've incorporated it into my diet and it's a staple on my shopping list just as milk or butter