Treyson will be three in September. He likes Paw Patrol and super heroes, and when he was seven months old he was diagnosed with acute lymphoblastic leukemia.
He's been on chemo for most of his life - but not anymore.
In August, he was found to be in remission, and he just recently had his last chemo treatment.
Today, to celebrate that, his family hosted at party for everyone who has been following his journey - and that's a lot of people. Through the Treyson Strong Facebook page, his family has kept his friends, family and even some people who don't know him personally updated on his status. More than 400 people are members of the "Treyson Army."
There was a bouncy house, food and even a train for people to enjoy at Treyson's "No More Chemo" party.
Olivia Landry, his mom, says "it was a long two years, but we got through the journey."
Treyson went through spinal taps, chemo, steroids and more doctor's appointments than he could count. His family says he was brave every step of the way.
"We had a lot of support from our family and friends which helped us along the way. It was very helpful and they supported us with everything with him and without them, we couldn't have done it," his mom says.
For now, Treyson is just going to see his doctors once a month.