Is it true that HSV-1 infection of the brain can cause Alzheimer’s disease, and that the symptoms can be reversed by eliminating the virus using the protocol devised by a doctor reachable via the Internet?

This is not true. There is a frequent finding of HSV-1 in neural tissue. That is because the virus takes up residence in nerve tracts and can reach the brain as well because it is a common infectious agent. It is present in a high percentage of people whether or not they have dementia, so this is an interesting and attractive hypothesis but is not accurate in there being a causal relationship. The findings of benefit are due to other mechanisms of the protocol and what it manipulates, and the benefits are being overblown, so this is not worth following.