My son had chylothorax and it can be common in CDH babies. We had to go to fat free feeds for some time and then worked our way back up to full fat feeds and using formula. The switch to the formula did help resolve my son's chylothorax and once we got it resolved he was fine and it never came back. We also had several chest tubes to help drain the fluid at different point in his recovery.

Praying Alex's chylothorax will resolve and she can get back on track with healing. Stay strong Alex!