Baby has small white scar on face after dad accidentally dropped a bean on him while reaching for plate

Anita
Hi ladies. My baby had a burn which has healed but left a small white scar. It happens to be on his face which breaks my heart as it could have been avoided. I took him to the paediatrician and she didn't give me much hope. Have any of you ladies have ideas of how we can treat white scars? Please help!!