By all means - detoxify your body! Perform the Full Body Cleanse and use a good salve or oil (i.e. Oxy-Oil) externally. And "no" you don't have to perform the soak. You prevent dust mites by good home cleaning (almost daily), using certain products (visit gaia.com for products), and air filtering (preferably ozone).
Full Body Cleanse
Oxy-Oil (8 oz)
Full Body Cleanse Companion (EBook)
Oxy-Oil (4 oz)