Dermal absorption

Dermal absorption is a term meaning the way a substance (cosmetic, medical, toxic etc.) is applied to the outer skin end enters the body through the various layers of skin and into the circulation.

In a few Christie stories this method is used to poison people.

People poisoned through dermal absorption

 * Hugh Chandler - The Cretan Bull
 * Esa - Death Comes as the End
 * Molly Kendal - A Caribbean Mystery
 * Various victims (probably) - The Pale Horse