I too have experienced this, Lg. In fact, I have one on the left side of my left heel as we speak. I often attribute mine to dry skin, but I also seemed to get this one after walking on a rocky surface with shoes that were not appropriate for it.
I've found things like "Burt's Bees," "Origins," or other creams to work wonders. Hope this helps, and hope your feet feel better soon!

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ALL my love, Carwy & Best wishes for a healthy new beginning!
Saying prayers for him & all our friends, every day.
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"Someone must speak for them. I do not see a delegation for the four footed. I see no seat for eagles. We forget and we consider ourselves superior, but we are after all a mere part of the Creation."
--Oren Lyons, ONONDAGA
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Pumps & Meters Used:
MM506,7,8,11 & 12, Cozmo, Animas 1200 & 1250
Many
A1C: 6.4
Type I 26yrs, pumping 12