I used colloidal on my warts for less than under a month. It did reduce the itch and seem to make them stop from getting bigger. It did not get rid of them and worse it did stain my skin. I have a black spot about the size of a pennie on my rear end. It's pretty black.
I also have some slight silverish looking skin on my pubic bone.
I am thankful that I've stopped using to prevent further staining of my skin.
I was using a nano hydrosol silver. A common brand found at stores too.
I would be wary of using this. I mean they say this only happens long term but I was using it under a month in spray form. Topically. I guess your genitals would have some mucous membranes that might make it penetrate your system.