This is my daughter, Brooklynn. She was diagnosed with acute lymphoblastic leukemia at the age of 3 in 2012. We found out pretty quickly she was allergic to one of the chemos and got ill very quickly with veno occlusive disease. She was on life support for 3 weeks. She fought and her body was able to turn things around and she pushed through. The rest of her treatment was very scary because we didn’t know if the Veno occlusive disease would come back. 
It didn’t and she was officially off treatment December 22nd, 2014 and will be considered cured June 14th, 2023.