I would guess there must be some level of benefit if HydroxQ is given in the right stage of covid??

I know the potus that got this started claimed it was very effective to prevent (prophylaxis) covid yet still got covid correct?? What am I missing

I know the same person and other Drs claimed it had good therapeutic benefit?? Yet when sick with covid the Drs did not use as his treatment?? What am I missing