The callous under my left toe specificly (and my rt toe ALSO) ARE TOO SORE TO HARDLY WALK ON. i AM SEVERLY FLAT FOOTED MY WHOLE LIFE. i AM A 66 YR OLD WOMAN WHO HAS GAINED 40 LBS IN THE LAST YEAR. i HAD BOTH FEET RECONSTRUCTED IN 1999. aLL MY METATARSALS ON BOTH FEET ARE HELD TOGETHER BY PINS. yET NOW THEY ARE VERY DIFFICULT TO WALK ON WITHOUT MAJOR PAIN. i'VE TRIED BAANDAGES TO NO AVAIL. eVERY NIGHT i SOAK THEM IN ePSOM SALT. wHAT CAN BE DONE?