With adequate arterial flow but restricted venous flow, congestion may occur in reattached digits or skin flaps, leading to increased pressure, which can restrict arterial flow and lead to tissue necrosis. Leeches are used to reduce that congestion by removing blood that can't exit via the venous system.
Leeches are used in acute cases of venous congestion, such as after reconstructive surgery. What we may have in CCSVI is chronic venous congestion. But we're also a wild bunch of "sure, we'll try anything, it beats the alternative" types. It could be that application of leeches to the neck and surrounding eye area (but not the eyes themselves) could help. Could it hurt? There is a risk of infection or bleeding.
Leech therapy involves an initial bite, which is usually painless (it's thought that leech saliva contains a mild anesthetic); an attachment period lasting 20 to 45 minutes, during which the leech sucks between 5 and 15 mL of blood; and a postattachment period, during which the site continues to bleed.4, 7 The final stage provides the primary therapeutic benefit; it's caused by components in the leech's saliva, including hirudin, a protein anticoagulant that inhibits thrombin in the clotting process, as well as histamine-like substances that induce vasodilation
Leech therapy is commonly required for three to seven days, or until angiogenesis (new blood vessel formation) occurs. Success will be evidenced by changes in the tissue-it will change from a purplish hue to a more normal skin color, from engorged to nonengorged, and from a very fast capillary refill (less than one second) to a more normal one (one to two seconds).12 Once angiogenesis is established, the tissue will have sufficient venous drainage and no longer require therapy. As long as venous congestion persists between leech applications, therapy should continue.
more info: https://wiki.uiowa.edu/display/protocol ... +Protocols
more info: http://www.biopharm-leeches.com/clinical.html
buy leeches: http://www.leeches.biz/buy-leeches.htm
Demi Moore: http://www.dailymail.co.uk/tvshowbiz/ar ... blood.html