As the old saying goes, “If I had a nickel for every time [something happened], I’d be rich.” For a dermatologist, the [something happened] stands for “Help—my back itches, Doc!” How often do I hear ...

Dear Doctors: I have Type 2 diabetes, and in the last year, I have had a problem with excessive itching of my feet. A nerve study showed I had good nerves to my feet, but there might be problems with ...