DD1 has just started getting it. I get it too in winter, just from really dry skin. I use Dermeze ointment for both of us straight after a bath/shower when we are still warm. We also have oatmeal baths. Either with a oatmeal wash or every now and then I just throw a handful of oatmeal in the bath. I hope it is just a dry skin problem and not a reaction problem.
What washing powder do you use? and what baby products? I was told by my Doctor to stay away from Johnson's baby products.