Depending on the severity of the injury, you’ll need a different amount of Treatments to heal your player. One day injuries require 5 Treatments, two day injuries require 9 Treatments, three day require 12, four day require 14, and anything longer can be cured by 15 Treatments. Got this info from here How to Avoid Injuries - Top Eleven be a Football Manager


But for 5 days i require 25 Treatments