People are calling it a miracle, and for good reason. Eden Carlson, a toddler from Arkansas, nearly died when she fell into a family pool in February 2016, leaving her brain severely damaged. But doctors have managed to significantly reverse the trauma against all odds.

Little Eden was in big trouble on the day of her near-drowning, as her mother performed CPR until doctors at a local hospital were able to revive her two hours after she also went into cardiac arrest. The lack of oxygen caused a severe brain injury, leaving her unable to speak, walk, or even provide a response to verbal cues.

But after 10 sessions of therapy, Eden is now able to walk and speak better than before her accident. Doctors used oxygen treatments, and are not even sure how such a dramatic reversal was achieved, although they believe the treatments helped reduce swelling and assisted with the survival of brain cells.

“Dr. Harch was consulted, and because hyperbaric oxygen therapy was not available in the patient’s location, he began a bridging treatment to prevent permanent tissue degeneration until he could get the patient to a hyperbaric treatment center,” the LSU statement reads. “Fifty-five days post-drowning, he began short duration treatment with 100% normobaric oxygen for 45 minutes twice a day through a nasal cannula. The patient became more alert, awake and stopped squirming. Her rate of neurological improvement increased with laughing, increased movement of arms, hands, grasp with the left hand, partial oral feeding, eye tracking and short-sequenced speech (pre-drowning speech level, but with diminished vocabulary).”