Go to MeWe and look up Dr. Andrew Saul - Megavitaminman
Scroll way down on his page. He has archived a ton of info on the successful use of high dose vitamin c and other supplements. That 1000 to 2000mg dose is way to low.
It should be the liposome form of vit c and upwards of 10,000 mg / day if treating along with zinc, D3 and quercertin
Dig in here also lots more
I have been doing my cousin’s formula since 1994. I am satisfied with it.