Anti-parasitc treatments that will carry the chemicals systematically (through the blood) will get parasites all over the body - whether herbal or pharma. My recommendation? Use a variety of things - an herbal cleanser (maybe HUMAWORM), then wait 90 days - then another type of herbal cleanser (maybe a Chinese or Indian formula) then another wait - then maybe a pharma treatment.
In-bewteen the treatments, you can eat things that will boost your immune system - garlic, onions, sage, thyme, ginger, cinnamon and cloves (1/4 teaspoon per day incorporated into your food) will help.
Strengthing your body and your immune system will help too.