One treatment with the cayenne should have eliminated anything that was present, except the eggs. As with most any treatment, you must follow up in 10 days to get the new hatchlings. However, continuous and repeated treatments, with various wormers, will do no good after the first cayenne treatment. Wait until after the 10 days to do your fecal test. Again, treating any internal parasite with DE is just throwing your money away...........Pop