I've taken a product that works similarily, Immunocal, which I believe is the best booster to your immune system available. It increases glutathione, the master antioxidant in your body.
Having said that, anything that will boost the immune system will help, but not for long. It will just make your liver juicier for the parasites and it won't tackle the underlying problem. Eventually, your body will get tired of fighting and your liver and kidneys will give up from accumulated toxins in the war they are fighting (with better ammunition thanks to your strong immune system).