The time it takes for jaundice to subside in infants generally correlates with the type of jaundice. If the jaundice is physiological, it will subside naturally in 7-14 days. If the jaundice is pathological, it will need to be treated to completely subside, and the specific time to subside will depend on the effectiveness of the treatment. Physiological jaundice appears 2-3 days after birth, peaks at 3-5 days, starts to subside at 5-7 days, and completely subsides at the latest 14 days after birth. However, some babies may develop pathological jaundice, which lasts for a long time and can last 2-3 months before gradually subsiding. If the jaundice progresses rapidly, the baby should be hospitalized and treated with a combination of phototherapy and gammaglobulin to stop the hemolysis. If treatment is not effective, blood exchange therapy should be performed if necessary. In general, jaundice caused by infantile hepatitis syndrome and neonatal sepsis will resolve when the primary disease is controlled. Infants must be fed food regularly during jaundice, and more urination and defecation can effectively relieve and treat jaundice. If milk production is insufficient, it can also be supplemented with water or sugar water.