Interesting Linenup, thanks--that led to a search for other Chinese herbals used for parasites- and I found this. What's interesting is if you click on each picture of the herbs, it will tell you what the herb is, and what it is for, and if it's for warm/cold like you were saying.
This is interesting to me because the Alt Med Dr. I go to is also Chinese Med, and he's starting acupuncture the next visit. Now you've got me interested in the TCM, and more for roundworm. Through some searching, Chinese Herbs are available online- this particular one for roundworms is $200 :( but if the percentages for the success rates are true, it would be worth it.