Sorry I forgot to add this--Dragon's blood" may sound like an  exotic 
ingredient in a witch's brew or magic potion. But researchers in China  are 
reporting that the material -- which is actually a bright red plant sap used  
for 
thousands of years in traditional Chinese medicine -- contains chemicals  
that were effective in laboratory experiments in fighting bacteria that cause 
 millions of cases of gastrointestinal disease each year. 
  _'Dragon's  Blood' Quenches Stomach Ulcer Bacteria !_ 
(http://www.sciencedaily.com/releases/2007/11/071112104837.htm)  
   Lois