What doe sOthello do when he hears the truth about the handkerchief?

Othello's grief comes to its fruition, as his reason and speech are finally fully restored. "Roast me in sulfur! Wash me in steep-down gulfs of molten fire!" Othello laments, the images of pain and torment reflecting the feelings which are coming over him. He juxtaposes heaven and hell to explain his despair, and the virtue he knows again that Desdemona did possess. But though Othello has some sense again, he still wounds Iago; this act seems to be done as a distraction of his pain, and makes Othello's character seem even more deeply flawed.