To be more specific: Hercules mortally wounded a centaur, who as was dying advised Deianara to take some of his (the centaur's) blood because it could be used as a love potion to make Hercules true to her (like all Greek heroes, Hercules was notorious for sleeping around).
She put some of the blood on the inside of one of Hercules' shirts. In fact, it was deadly poison and burned him to death, which was the centaur's plan all along
To be more specific: Hercules mortally wounded a centaur, who as was dying advised Deianara to take some of his (the centaur's) blood because it could be used as a love potion to make Hercules true to her (like all Greek heroes, Hercules was notorious for sleeping around).
She put some of the blood on the inside of one of Hercules' shirts. In fact, it was deadly poison and burned him to death, which was the centaur's plan all along