All those skin infections arent that bad.. if you do get one, u can just wrap it and get a creme for it and itll go away in a week or so, its easy to spot when u get it and I've never seen it get serious.
and about the injury..
I didn't know my neck was fractured from football and I wrestled the whole season and I was fine for the most part if that says anything. Theres rules on slams and stuff so theres not much to worry about.