News & Your Opinion Halo Sat ,05 2424 8 months ago Last Updated : 01:30 AM 'Oxygen can heal': Hyperbaric chamber treatment offers breakthrough solution for long COVID-19 The clinic said they've treated thousands of people with long COVID-19 worldwide. HALO NEWSLETTER Keep reading HALO with a Free Subscription unlock this story instantly and join members and pros reading HALO daily -It's Free SIGN UP LOGIN