Keratosis
Many people have precancerous lesions from sun damage on their shoulders, chest, and face. It presents itself as dry, flaky skin spots or small, reddened, inflamed areas on the skin for years before it becomes a skin cancer.
Silver sol gel can be applied topically once or twice a day, and one teaspoon of liquid silver can also be taken twice a day. I have seen a case of keratosis remedied in as little as two weeks. Treatment should generally be followed for at least two months.