If you been wondering what’s up with all the purple spots covering Team USA athletes, relax, it’s not a bad case of Zika! The clownery circles are actually a side-effect of an ancient Chinese healing practice called “cupping.”

Several athletes, including members of the men’s gymnastics team and swimming team have been spotted sporting the dots, including gold medalist, swimmer Michael Phelps.

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Michael Phelps cupping olympics

While it may look like the Olympians lost a fight with some huge mosquitos, the circles are actually meant to do more good than harm.

Rio Olympics Swimming