Isabelle is “definitely a fighter,” her veterinarian says, but the pit bull terrier mix needs help after being badly burned in a fire.

The injured pup received second- and third-degree burns the week before Christmas when the trailer she’d been staying in went up in flames.

Two dogs were caught in the Dec. 20 fire. One escaped with minor injuries, but Isabelle was initially trapped. Eventually, she managed to escape the wreckage, but she was left with burns on her paws, belly, chest and face.