Yes, Orajel can be used while breastfeeding, but it may affect the baby's ability to swallow properly while nursing. It is recommended to first try using acetaminophen (Tylenol or Tempra) if you haven't already. You can also use a cold washcloth for the baby to chew on. If your baby is 6 months old, you could consider using ibuprofen (Advil). Remember to consult with a healthcare professional and provide your baby's weight to determine the appropriate dosage.