Thank you Dan.  The summarizing definitely helps to organize one's thoughts.  
So far she is leaning towards nitroglycerin patch.  It seems to do the job 
quite well.

Barbara 




  Barbara,

  There are four methods generally that are being talked about here.
  Each takes a different approach to treat the bite.

  1.  Kill any bacteria etc that are injected by the spider.
      - Use colloidal silver or antibiotics.

  2.  Draw out any poison from the bite area.
      - Use charcoal pack, clay pack, or something similar.

  3.  Counteract the action of the poison.
      - Use nicotine patch.

  4.  Neutralize the poison.
      - Use heat, or high voltage (low current) shock like
        a stun gun or a spark from a car or lawnmower.

  Hope this makes things clearer.

  Dan