Silver colloid is exacerbating symptoms via the Herxheimer reaction, or die-off. As seen in Candida die-off, it is the dead cell coat of the killed pathogen that actually causes the most allergic reaction and harshest symptoms. The pathogen wants to "go along to get along" like any good parasite and tries to hide out when alive, punishing you when it gets killed off. Enzymedica offers enzyme relief to digest the protein cell coat and has great informational CD's for free as well as enzyme tests on their website. Any sub-acute infection will add to your allergy load as described by Dr. Doris Rapp (google her work) and the silver colloid kills back these pathogen stressors for a time. Don't forget to take antioxidants like Vitamin C when taking silver colloid as it is a hyperoxidizer. Blessings!