vesicatory
  發泡劑
  Ves·i·ca·to·ry a.  Med. Tending, or having power, to raise a blister.  -- n.  A blistering application or plaster; a vesicant; an epispastic.
  ◄ ►
  vesicatory
       adj : causing blisters [syn: vesicant]
       n : a chemical agent that causes blistering [syn: vesicant]