Here's what you can do to stay healthy and prevent infections from spreading:
Shower after EVERY practice and tournament.
Wash your clothes and singlet after every use.
Only wear your wrestling shoes on the mat. Put them on at practice and take them off immediately after practice. Wipe shoes with a disinfectant wipe/spray after each use.
Clean headgear with disinfectant wipes/spray after every practice.
If you are sick, stay off the mat. Stay home and get well.
Keep your hair & nails neatly trimmed.
Be vigilant for any signs of a skin infection. Talk to a coach as soon as possible.