I'd like to share a personal story in hopes it may help others.
About 2 years ago, a spot appeared on my forearm. It was small & flakey. It was like a scab that would never heal. Started growing bigger & deeper and turned dark in the middle. I began rubbing IVRMCTN (yes, "horse paste") on it about 3 months ago - every couple of days. Attached are the before & after pics. For full disclosure, I never had it looked at & was never diagnosed with skin cancer but I had a sneaky suspicion that's what it was. It's completely gone now. If you look closely at the second pic, you can see the crevice where it once was. Not only that, but look at the difference in my skin - it went from crepey to smooth. Hope this helps others!!