topical Iodine would be good too. i would try that before silver, but silver is good too.
i have had spots of itching myself, with sores. i think its detoxing, perhaps even correcting precancerous or cancerous spots. i did topical Lugols on them and they heal up. i also have a deep itch on my belly just left(my left) of my navel. something is healing is all i can figure. i have always been told itching is a sign of healing. that still seems to be true to me.