She's been using just plain coconut oil on him and that seems to be working, but I've also heard good things about lotion bars too. (mommakesjoy.com)
You can always use plain coconut oil, but making an infused oil adds some vitamins and speeds skin healing. (wellnessmama.com)
I did find in the process that pure baking soda or plain coconut oil work pretty well, so if you aren't into making your own, maybe try that. (wellnessmama.com)