Eventually , Deianira , jealous of Heracles 's many sexual conquests , smears Nessos 's blood on Heracles 's cloak , burning his skin , driving him mad , and killing him .
Unbeknownst to her , his blood is poisonous .
Deianira , jealous of Heracles 's many sexual conquests , smears Nessos 's blood on Heracles 's cloak , burning his skin , driving him mad , and killing him .
Unbeknownst to her , his blood is poisonous .