Tapeworm larva can migrate out of the GI tract & nest in any area of the body, including the perianal & genitourinary areas. They're often mistaken for pinworms & require a different drug protocol.
Since your current treatment with Albendazole & Ivermectin has provided only minor improvement in your overall symptoms, suggest you switch gears & try the Tapeworm Protocol: Niclosamide, Praziquantel, & Albendazole: http://curezone.com/forums/fm.asp?i=1602094#i.
Hope this info helps you in your parasite battles. Good luck & keep us posted on your progress.
Cheers ~~ ICU 
My motto: Aim high, shoot low, & use big guns!
And as the African warrior Shaka Zulu said: "Never leave an enemy behind." (hee hee)
My Curezone Posts: http://curezone.com/forums/s.asp?f=762&c=0&ob=d&m=ICU
Parasite Drug Protocols: Roundworms, Tapeworms, Flukes, Strongyloides, Morgellons, & Protozoa: http://curezone.com/forums/fm.asp?i=1574645#i