Jaundice hospitality

Most babies will have jaundice. Its either high or low. Usually monitor at polyclinic by machine or blood test. Mine started off ok but he suddenly shoot up to 190 or so. Doc say 200 then need to go hospital or something. But his went down after few days. Just need to keep feeding milk, bm or fm, so baby will poop poop pee pee. Usually hospitalized those high ones until it goes down so it depens