This is lengthy. I have plantars fasciitis in both feet.....painful. Feet have gotten flat as I have aged. I have lost weight to try and help with this. I have bone spurs in my heels and achilles tendonitis in my left calf. It hurts like the dickens and goes down into my heel. My calf is very tight at times, my leg does not get red like yours, but, I wonder if you are having inflammation causing the redness. I have done it all, injections, steroids, expensive shoes, night splint, boot, special socks, volateren gel, ice, stretches, etc., This may sound crazy, but, when I get my knees injected for arthritis with cortisone, I am systemic. It doesn't just localize it goes all over and my feet and achilles tendon quits hurting for 12 weeks! My doctor is amazed that this works. Losing weight has helped too. If you can wear Crocs shoes around the house (that was recommended to me by my orthopedic doctor or Vionics) it may help. You need to support your feet with a good arch support and a good padding on your heel. Do not go barefooted. It's important to stretch your feet out in the morning. I hope some of this helps you. Oh, also soak your feet in Epsom salt and then rub the Voltaren Gel on your feet and calf. Freeze a bottle of water in the freezer and roll the arch of your feet over it one foot at a time. Stretch the calf out stepping up and down with your toes on steps....hold onto the rail. God bless you & praying for you to get relief. What you have is painful.