I've had it for years. Then I was diagnosed with Type 2 Diabetes. I tried changing my diet to suit the diabetes - low carbs, whole wheats, leafy greens - and my IBS flared up so badly. It was bad before I started taking my metformin/glucofage but it got increasingly worse when I changed my diet for the diabetes.
Newborns are also coated with a thick, pasty, white material called vernix caseosa (made up of the fetus' shed skin cells and skin gland secretions), most of which will be washed off during the baby's first bath.
If your newborn is circumcised, gently clean the area with warm water, and if your baby's doctor recommends it, put a dab of petroleum jelly on the penis or on the front of the diaper for a few days to ease discomfort from friction against the diaper. You might also be advised to apply a new bandage on the penis during diaper changes for a few days.