pup with dry skin patches

[denny606]

out of six pups one of them has smallpatches of dry skin and little bumps for lack of abetter descr. all the other pups are slick and and shiny coated but him , ihave bathed him and applied avon skin so soft and it seems to have helped some,don't laugh it woks on horses is there any one who might have an idea what this is and how to treat it ,he will be 4weeks old this week