Clinical trials Medicine Science Skepticism/critical thinking

A blast from the early pandemic past: Healight to treat COVID-19

In April, I wrote about Healight, a device intended to treat COVID-19 by shining UV light directly into the lungs of patients on a ventilator. Its creators have finally published a clinical study. Unfortunately, it is…underwhelming.

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Healight: A highly implausible treatment for COVID-19

Last week, President Trump proposed using internal light to treat COVID-19. Partisans defended him by pointing to Healight, an experimental device to do just that. It didn’t help.