Dr. Alvarez says this strain can be caused by "wearing unsupportive shoes, walking or running ... morning or after sitting for a while." If you're unsure what's causing your heel pain, gently ...

But the particular problem with your feet is that there are so many nerve endings that it can feel really sore to step on them after a long ... of your foot from your heel bone to your toes ...

After 1 week of topical treatment with salicylic acid 6% multivesicular cream applied b.i.d. to the left heel only, there was rapid resolution of both hyperkeratosis and pain (Figure 4).