Is it safe to use neosporin when breastfeeding? (on belly ring hole)

Yes: This should be safe to use while breastfeeding.

Yes, BUT...: Do you have an infected piercing site? Check for signs of infection: ^'ed redness, warmth, swelling. ^'ed tenderness, pus, red streaking, swollen lymph nodes or fever. Recommend keeping piercing in place unless directed by Dr (if removed – drainage tract will close up w ^'ed risk of abscess formation). Call Dr for medical evaluation. Your Dr may prescribe oral antibiotics or antibiotic ointments