My first concern is that you may think you have "just pinworms". As info below the dotted lines mentions, that is very unlikely to be the case. My 2nd concern is for your family for they probably have parasites too, maybe pinworms included & maybe not. (Sometimes one person in a family will have them but the other does not since they are more resistant.)
Pinworms are very serious. They can cause appendicitis for example.
You can get rid of them (though if others in the home are carrying them, or you are exposed to their invisible eggs elsewhere, such as in schools with little children then you have to figure out how to not be reinfected) with Noxema or some kind of harmless cream mixed with a good quality (maybe Aura Cacia) eucalyptus essential oil. Mix it so that it feels tingly on your anal orifice but not at all painful.
What you do is keep the mixture liberally on your anal orifice 24/7. If you have a bowel movement, you reapply instantly. Maybe keep a little mini jar, such as you can find in the beauty section of a drug store or grocery store, of it in your pocket. If you are a woman you might want to wear a sanitary pad to keep the mixture from going thru your clothes. Or if you are a man maybe wear 2 sets of undies.
It can take 3 weeks to 2 months to kill them that way. The reason this method works is that the pinwroms have to come out to mate. When they meet the eucalyptus oil they will die instead.
Having said all that, I don't know but strongly suspect Pharmaguard, i.e. food grade diatomaceous earth (see ebay for one source) will kill them too and more simply. I would say use it almost every day for life to tell you the truth. It doesn't just kill pinworms. Mho.
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See link below for cayenne pepper challenge test to see if you or any loved ones have tapeworms (sometimes one sees sesame seed looking things, or “blanched almonds” but usually “white rice” in the stools), for example. Many people have found parasites this way, parasites that lab tests said they didn’t have. Hulda Clark says everyone she ever lab tested had tapeworms & everyone had other kinds of parasites as well.
What helped me in case any of it can help you:
http://curezone.com/forums/fm.asp?i=1522290#i
Another approach to tapeworms, also ascaris:
http://curezone.com/clark/ascaris.asp
RE parasites, low enemas can help reveal what bugs are dying without any “digging around.” Enema bags are cheap & online or at drug stores. The net has many sites telling how to use them. Use 2 cups filtered water only per bag at a time. You don’t want to go too high and wash away good intestinal bacteria. (On occasion, to relieve really bad constipation, you can go higher, though. Preferably less than one time per week.) Add some plain, no sugar, yogurt with acidophilus, or “live cultures” to the last bag & eat some. This kind of yogurt is easy to find at most grocery stores. The enemas can also help combat the constipation often associated with initial stages of parasite killing and just help speed up the cleansing process in general.
Also, many people are not aware that they are gluten sensitive, maybe even have celiac. A gluten sensitivity test can help. Even if one shows up just at Level 1 in sensitivity, that means the intestinal villi have been damaged & nutrients are not getting through as they should. Also where gluten sensitivity is, candida is probably lurking.
Candida may be lurking regardless. One way you may find it is by doing low enemas, mixing water with apple cider vinegar or 3% hydrogen peroxide. Use after a bowel movement. If you see things that look like string cheese or yellow gel, or white things that look like pieces of tissue paper, then you know a candida cleanse needs to be done. I'd personally get rid of the parasites first. Both cleanses cause die off and you don't want to overdo it.