This Is a quiz. Try tying your shoes when your thumb is very sore. Or ,opening a zip lock bag. Better, try putting a leash on a wiggly dog when your thumb is so sore that it is a painful process. I even have a better one, unhook your seat belt
without using your thumb. I flunked all of the above. I have a very dry, cracked and bleeding right thumb.All of the activities that I just mentioned , really hurt my thumb. I see my dermatologist today and I am ready for some relief. There is no ,known
to me ,reason why my thumb does this . Only one thumb,when I have 9 other digits that could share this pain. When some people saw my sore thumb, I heard stories about a similar soreness happening to them. Seems my one digit isn't such a strange medical . I'm
in good company. But it still hurts.