Everyone knows about super glue and has probably used it to glue things together. Here’s another use that is less well known, but very popular among makers and anyone who works with their hands. Our winters out here (Kansas) are cold and somewhat unforgiving and often result in tiny and painful cracked ends of finger and heels. Super glue is terrific when applied. It dries very fast, creates a shield that helps prevent pain, protects, and best of all, allows time to heal because it is protected. Just a bit on the cracked finger or heel provides a good deal of pain relief. Almost any type of super glue will work just fine. Just remember that a very small amount is needed and that amount needs to be targeted right in the cracked finger tip or heel.
-- Neil J. Salkind
[According to this video, super glue works best when skin cracking is in the very early stages. After that use ointment and bandaids.]
Superglue 12-pack ($6)
International Amazon link
Available from Amazon