Colloidal silver has no known function in the body and has no proven benefit as a supplement, according to WebMD. However, in spite of FDA concerns over its safety and efficacy, people still use the supplement for a variety of ailments.
Colloidal silver is likely unsafe when taken by mouth, applied to the skin or injected intravenously, states WebMD. The silver in colloidal silver products gets deposited in vital organs such as the skin, liver, spleen, kidney, muscle and brain.
Colloidal silver is used to treat a variety of bacterial infections including tuberculosis, Lyme disease, pneumonia, gonorrhea and syphilis, notes WebMD. People also use colloidal silver for scarlet fever, stomach ulcers, cholera and parasites such as ringworm and malaria. It is also used to treat viruses including HIV/AIDS, pneumonia, herpes, shingles and warts.
Colloidal silver is also used for lung conditions including emphysema and bronchitis and skin conditions such as eczema, impetigo and psoriasis, says WebMD. Inflammation of the bladder, prostate, colon, appendix and sinuses may also be treated by the supplement. Other uses include treatment of cancer, diabetes, arthritis, lupus and chronic fatigue syndrome. Colloidal silver is also used to prevent flu, swine flu and the common cold. Colloidal silver is applied directly to the skin for acne, burns, eye infections and skin infections.