Great Lakes Mold Mix 1oz. Great Lakes Mold Mix by Dolisos. Great Lakes Mold Mix: Like all homeopathic medicines, this product capitalizes on the principle of "like cures like". Large doses of local molds and pollens cause allergic reactions. With region allergy mixes, the allergy sufferer takes the same local molds and pollens in homeopathic doses which spur the individual's own defense system against the allergic reaction. In other words, this is a tailor made product for local allergy sufferers.