Glucosamine is usually used for arthritic pain in large synovial joints such as hips, knees etc. It will take about 6 weeks to show real benefit as it helps repair the joint lining which then relieves the inflammation and and pain. It is highly unlikely it would cause pain of any kind as it is a natural substance that is also produced by your body, although not always in sufficient quantity to meet needs. If you want to contact me at the office I will see if I can help any more with the pain you are experiencing and also advise on the suitability or otherwise of glucosamine for the problem you have. Of course we will refund your money if it is not the best product for your problem.
Kind Regards,
Amanda