Your Apple Watch or Fitbit may be a breeding ground for E. coli and staph bacteria. Here’s how to clean your fitness tracker

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Your fitness tracker might be carrying a dirty little secret, and it’s not how many steps you take.

Many TikTok users have taken to the platform to share that they’ve developed rashes from wearing their smartwatches. Some discovered they had contact dermatitis, which can be uncomfortable but will likely clear up in a couple of weeks. Others had more potentially harmful infections.