How many hours a day does blue light shine on newborn jaundice?

Neonatal jaundice is divided into physiological jaundice and pathological jaundice two kinds. The baby's current situation, need to light blue light, indicating pathological jaundice. Blue light is the preferred way to treat pathological jaundice, the general daily exposure time of children, is determined according to their condition. But most of them are about 8~16 hours.