Lee was injured in the middle of November and is ready for a return to action in Tuesday morning's game against the Chicago Bears.
"[The techniques] all blend together," Lee told the club's official website. "You can't tell, but probably the rest and working out here was what helped out most.
"It's just a whole system of here working with the trainers, making sure I'm getting rest, making sure I'm on point with my diet, making sure I'm doing different treatments like hyberbaric chamber and different things that are going to help heal that muscle quickly. I think it helped."