Parasites multiply soo quickly. As Dr Bailey says if you have a dozen mice and only six mouse traps you will need to set them more than once. Cleansing is a bit like that you can only kill so much in the month. And you need the three months inbetween so you dont create resistant parasites.
I found the inbetween herbs worked amazingly to stop them multiplying again so much while i was waiting the three months for my next cleanse.
My first cleanse got rid of a massive amount of eggs and young ones. It was my second cleanse that went deeper and started killing my tapeworm and liver flukes. I still have more to do to get totally clean, but as the saying goes. rome was not built in a day.
Hope this helps