 Heracles saved her from Nessus by shooting him with poisoned arrows.She had kept some of Nessus' blood for the centaur told her in his dying breath that if she were to give Heracles a cloak (chiton) soaked in his blood, it would be a love charm.Deianira, being concerned by Heracles' infidelity, believed Nessus’ lie that Heracles would no longer desire any other woman after he was under the spell of the love philter.