@gardenofeden in this instance using OTC is more about dosage and purity control than anything. I know about the antibacterial effects of colloidal silver. I also understand the difference between antibacterial and antibiotic.
Colloidal gold as an antinflammatory has no scientific basis that I have seen and gold has been known for thousands of years to be completely inert within the body.
However if people want to try it. I won't stop them. They can use it like any other anti inflammatory in group 1 or group 3, because we didn't specify any particular drug and a large enough test group should give us enough data to prove or disprove the hypothesis regardless of the particular anti-inflammatory chosen.
They would need to document source, purity and method of preparation for the results to have scientific validity though.