I took 1-2 dropper fulls a day for 3 months with little to no effect other than a very sore chin as the body stores excess silver in the face.
Topically, it will certainly kill anything on the surface.
Orally, it will certainly kill stuff in your system.
Colloidal Silver is great at killing things on contact. However, putting this stuff into your body is not ideal. If you want to spray it on your arm pits before using deodorant, more power to you – you’ll smell fresh all day. Hoping it will cure herpes, not so much.
Additionally, you can make your own colloidal silver very easily, but the particles will not be small enough to be very effective. However, the homemade stuff is great for topical applications.