This is really an issue for anyone using a sports mat -- gymnasts and those in martial arts, yoga, Pilates, and so on. Getting your face rubbed in the mat, though, might make wrestlers the most susceptible.
In any case, the issue is the chemical sanitizers -- which we used to brush on with a mop and then let air dry -- are almost never used correctly in these sports. And worse than that, they're probably never disposed of properly (as hazardous waste) after they're used. Which means a lot of people are probably involved in illegal dumping and have no idea.
Luckily some gentlemen in my own hometown developed a fast, effective, and chemical-free solution that I hope finds its way into gyms across America. You can learn more about it here.