Silver is anti-biotic, anti-virus and anti-fungal.
In pioneer days to cure an illness, a silver dollar was put into a glass of milk and left for an hour. Then the milk was drunk. This was a remedy to cure bacteria or viral infections. The practice had to stop when dollars were not made from silver anymore.
Now it is possible to buy a product that has suspended the pure silver particles evenly in a solution of distilled water. It is colloidal silver and I have bought mine in a little bottle that has a spray. I find it invaluable to spray on sore throats or in sore ears. It is very gentle and effective.