Some formulas have very little iron or none at all. Most doctors recommend using an iron-fortified formula. Some formulas are made from soy milk instead of cow's milk. If your baby seems to be allergic to formula made from cow's milk, your doctor may suggest using a soy-milk formula.
CIP (Congenital Insensitivity to Pain) is a disorder where a person cannot feel pain. CIP can also lead to CIPA (Congenital Insensitivity to Pain with Anhidrosis) where the body cannot feel pain and it cannot perspire (sweat). CIPA almost rarely ever developes from CIP but there has been cases.
Updated July 18, 2016. Idiopathic pain (also called pain of unknown origin) is the term doctors use for chronic (long-term) pain, lasting 6 months or longer, that has no identifiable cause. Although its origin is often a mystery, idiopathic pain is very real.