Last summer (2008) and this summer, as wild blackberries become ripe in my area, I have experienced
the appearance of painful
bumps on my palms and
fingers. There is often severe itching of
the palm and/or fingers. There is significant pain associated with the raised, reddened bumps, very similar to that caused by an imbedded thorn or splinter deep under the skin. However, there is no puncture, nothing embedded, and no fluid or pus associated with the bumps in any way.