I have noticed in the last few days a single small bump appearing on both thumbs, one on side of left hand and a cluster of three tiny ones on my right ring finger which has no ring on it. I wear no jewelry and lead a quiet life. I ve tried to guess if I ate something new lately, but everything has been the same. I read about a term called pompholyx, but still not sure. They don t hurt, but has been itchy if I touch them. I am healthy otherwise and am not sure what this might be.