Hello Iam A 69 Year And Iquiry My Left Foot

Hello Iam a 69 year and iquiry My left foot swollen at ankle I must have sprained it while doing foot excercise, it wasn't bad I thought it was getting well and thought it to be well, well stupid me I got on my stationary bike for 20 minutes, later on pain and sweling of ankle came back. I just recently soaked foot and leg in warm epsom water. Right now it feels better. How can I better takecare of myself? I have varicose veins in both legs.