“How are 2nd and 3rd burns treated?”

Depends, yes, especially if it is over the face or neck, it may leave a scar for sure.

Burn unit. Yes.

They need to be bandaged and sometimes an antibiotic ointment for some 2nd degree.

Third degree burns have destroyed the full-thickness of the skin, so unless very small in size, require skin grafting to heal properly. Grafting can be done by several specialties in medicine, but most often Plastic Surgeons. Second degree burns are partial-thickness, and their care ranges from supportive (topical agents to minimize scar, keep skin healthy, prevent or treat infection) to interventions like with full thickness, depending on if they are superficial-partial-thickness or deep-partial-thickness, their location on the body, and their size.

Donald W. Alves, MD,MS,FACEP