I HAVE AN ITCH ON THE INNER RIGHT HEEL THAT

I HAVE AN ITCH ON THE INNER RIGHT HEEL THAT IS DIFFICULT TO RELIEVE. EVEN INTENSE SCRATCHING IS NOT RESOLVING THE ISSUE. NOW SAME AREA IS PAINFUL AND SWOLLEN. PROBABLY DUE MY INTENSE SCRATCHING. BENADRYL ITCH CREAM HAS HELPED TEMPORARILY, BUT ITCH COMES BACK MORE INTENSE. REGULAR HYDROCORISONE CREAM IS NOT EFFICTIVE. NOT DIABETIC, NO HISTORY PAD OR PERIPHERAL NERVE ISSUES.