Let me tell you about my pinworm battle (I am over it now). Last summer I got pinworms, I think from my neighborhood pool. Anyway, I had them BAD and tried many things to get rid of them. I used Resee's Pinworm meds, the clove/walnut hull/wormwood combo, laxatives (very important, if things aren't moving out you are not going to be successful), enimas and so forth. They got better, but I didn't get rid of them until I got Ivermectin and Albendazole from my local farm supply store and took these as per the instructions on the parasite drug forum here on curezone. At that point, I finally got rid of them, it took me 4 months in all. For me it took the herbs, enimas, meds, laxatives, washing my sheets and clothes in hot water every day, disinfecting my bathroom every day, disinfecting the toilet every time I used it, etc. It was hell. I STILL take Reseec's pinworm medicine weekly to make sure they don't come back (because I had them everywhere, including my sinuses and of course your sinuses drain into your stomach and the whole thing is a cycle). I discovered I had lots of other parasites and have spent the last year fighting them.
Right now I'm focusing on getting healthy, green juice, vitamins/minerals/supplements, magnetic zapper treatments at my chiro's office (Dr. Wally Unrue, Castle Rock, Colorado) - this kills parasites big time.
The key is to be consistent and not get tired. You have to be more persistent than the pinworms.