So out of ideas of itchy right heel!

i have read some of the concerns people have.  i have experience the red itchy blisters on my right foot.  Im a left hander. i wonder if it has anything to do with that but oh well i dont know what else to do about my foot. As i type right now im soaking in water and vinergar to see if it helps is there anything else been found to cure these itchy blisters on heel and side of heel i have develop a habbit of pulling the skin and releasing the liquid out to avoid the itch but them it looks nasty and cant wear sandles.  What do you reccomend?