This isn't true. A recent study showed significant results in using HCQ: https://www.straitstimes.com/singapore/health/throat-spray-and-hydroxychloroquine-found

This isn't true. A recent study showed significant results in using HCQ: https://www.straitstimes.com/singapore/health/throat-spray-and-hydroxychloroquine-found-to-reduce-risk-of-covid-19-infection https://www.straitstimes.com/singapore/health/throat-spray-a...