It's his thumb. It's slighty red, shiny and ever so slightly bigger than his other thumb. It has a yellowy bubble to one side of the nail.
It doesn't seem to be hurting him, as when we touch it he doesn't flinch, but he seems more unsettled than usual but he is only 2 weeks old so it might not be to do with his thumb.
What should I do? Do I pick it/prod it/poke it/leave it?
Thanks