My son has his reaccur occasionally and he is 2 1/2 now, as a baby he had it all over his body also....
I DITTO THE OMEGA 3's
Take 1 TBL of flax seed oil/day for 7 days should go away on its own!
in the mean time I give him colloidal oatmeal baths, wash all bedding, clothes in an allergy free fragarence free detergent.. don't give acidy foods as those irritate him.... and lather him with lotions, vit E, or other things to protect his skin