What Is The Treatment For Pain In Legs And Feet?

My husband has feet pain and leg pain, he has been wearing a boot several weeks and now a shoe on one foot with a brace, his feet swell in the daytime and it reduces at night. He is 78 years old, any suggestions a to how to reduce the pain? Joan and Henry Herndon He has started on gapatin this week but it doesn t help much so far..