Recommendations for chronic foot pain

What are your recommendations for an individual who is in her 50s and is experiencing foot pain ociated with aging? She's been to a doctor, but he has only given her pain relievers and told her that it is something she'll have to live with. Do you know of any foot rubs, creams, magers, or foot baths that have helped you or someone you know with foot pain? (Shoe insoles or different shoes do NOT help her; her feet will hurt even if she has been off of them almost all day.) Are there also any dietary changes that she could make to help naturally reduce the discomfort? Your help or any information that you have would be greatly appreciated. I've tried asking in many other sections, but haven't gotten much information.