My 6 month old has patches of dermatitis on his chin, neck,back of his legs and cracks of his ankles. We've tried every lotion, potion on the market, and creams including hydrocortison and they all work for a few days but then it reappears. Has anybody tried olive oil and been successful? Doc says it will clear up when he can sit up straight and get more air to it but in the meantime he looks like a burn victim under his chin, v upsetting. Ideas welcome.