My NB has jaundice and i have heard breastfeeding causes the jaundice level to rise is it true? Any mummy can advice how to reduce the jaundice level?

My baby is now 1 week plus and still having jaundice. I'm still feeding her ebm and latching her, also bathing her in yellow flower seed. Haven't tried the Guinness stout method yet but tempted to do so since many mummies swear by it. Bringing her to polyclinic tmr for follow up and hoping for the best!!!