Can HBOT help with long COVID or brain fog?

Here's the honest answer: it's promising but not settled. A few small randomized trials have reported improvements in fatigue and cognitive symptoms after a course of HBOT, which is encouraging — but the studies are small, and long COVID is not an FDA-recognized indication. That means it's considered off-label, insurance generally won't cover it, and you should weigh the cost against evidence that is still early.

If you're considering it, ask any clinic to show you the actual studies rather than testimonials, and be wary of anyone promising guaranteed results. We'd rather you make an informed decision than an expensive one.