black dots on the palm

Just wondering if anyone have or had similar problem and what did you do about it? Share doctor's diagnosis/ treatments? I am 32 years old and recently (2 weeks now) developed little black dots on the palm of my hands. They start off like a blisters, then a small pin-like dots appear. They also peel when the pocket of the blisters seem dry . It sometimes itches...and they also seem to be spreading. It also seems that when I touch my kids hands whom are 2 and 6, small pimple-like bumps appear on that same spot.  Our doctor don't think much of it!!! It seems to be spreading and he says its probably eczema, don't worry about it. Help!! Any help would be greatly appreciated.

-sharon