How Long Does Juvenile Jaundice Take To Recover?

Hello, My wife is 27 years old. She has normal delivery. She had bleeding around 3 - 4 months during pregnancy. She is also very weak. No diabetic problem. My first son was also born in normal delivery. This Son is now 22 days old. He is on mother feeding. feeds well. Mother blood group is AB+ve and Son blood group is B-ve. He is suffering from Jaundice after 3 - 4 days of his birth. His whole body, face, feet eyes were pale yellow. He was admitted in hospital for phototherapy when he was 8 days old. At that time his LFT was 22. After 3 days he was discharged from hospital and at that time is LFT was 15.7. After discharge doctor prescribed for 2 injections Cefixime (150mg) and Grasil (20mg) to inject 2 times a day for four days. but still there is no proper recovery in jaundice. Last week we again LFT which was 18.6 . He is passing regular urine. Previously urine color was yellow. but now it is colorless. Stools not passing since 2 days. 2 days before its color was yellow, not very think, not very thin. Since last 1 week we are also exposing our son in morning sunlight for around 15 - 20 minutes. Please let us know when he will be recovered from Jaundice? we are much worried. Regards, Najum