For at least a year now, I have these instances where a spot on my left index finger
(at the joint near the tip of my finger) starts to itch. It itches for up to a couple of weeks, and then it stops for a few weeks, only to start again. It's only this spot, and always this spot. There's no rash (only redness because I scratch it) and no blisters, but while this is going on the skin on this spot feels very dry, no matter how much lotion I use. Any advice?