If you are latching maybe you can use bottle so that baby can take in more milk, after the jaundice go away you can latch back. I did this when my boy had jaundice but baby may get nipple confusion. If not you can latch more so that it can "flush" out the jaundice in baby's body.
You can go to chinese medical hall to find "jin yin hua(金银花) if I am not wrong to bathe baby. Just ask the person manning the medical hall. They should be able to advise you.
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