How is the turtle doing? If you think it needs medical attention, your best bet is to contact a licensed wildlife rehabber in Lake County
Flint Creek Wildlife Rehabilitation (847) 842-8000
Barnswallow / Linda S. Brewer (847) 487-3606
Best Friends Animal Hospital (847) 548-2626 Carla Brown (847) 459-7535 ext4005
Cynthia Golan (847) 863-5062 Kathlene Khadra (773) 447-2995
Michael Nader (847) 356-5045