My nine year old son had impetigo under his nose. I sprayed colloidal silver onto the area every time I thought of it. (Probably 5 times a day.) It cleared up in a few days.
I think it cleared up easily with the silver because he was already taking turmeric for something else. He was taking 4 capsules (or 1 teaspoon) twice a day. That may be a lot of turmeric for a 9 year old, but he is a big boy and has taken turmeric often in the past, so I knew that it would be fine for him. Usually for a child of that age I would use 1/2 teaspoon of 2 capsules twice a day.