Usually when jaundice is more severe in babies, jaundice irradiation treatment is needed to reduce the yellowing, which is a more effective treatment. Usually, the maximum duration of irradiation for jaundice is not more than 3 days. Because jaundice irradiation can have many side effects, such as fever, diarrhea or rash, it is not very serious and can be continued. Blue light irradiation mainly breaks down riboflavin in the body, and if light therapy is given for more than 24 hours, it can cause a decrease in riboflavin, which in turn reduces the activity of erythrocyte glutathione reductase. Therefore, riboflavin should be supplemented when light therapy is performed. If prolonged phototherapy can cause a bronze color of the skin and the formation of bronchitis this condition should be stopped immediately. Therefore, the duration of jaundice exposure is usually more appropriate in 2-3 days, together with other therapies.