Jaundice! Need advice please

Ciara
My daughter is almost 3 days old and she's jaundice :( at first the dr didn't think it would need treatment and would subside on its own. Her levels were elevated more than he'd like so he is keeping her an extra night for the light therapy. Does anyone have any experience with this? The dr thinks one night should do the trick and I'm hopeful but scared! I hate this and worry so much