Curing through Avoda Zara

  Yerushalmi (Shabbos 14:4)  One heals with anything except pagan worship, uncovering nakednesses, and spilling blood. Rebbi Phineas asked: So far if he said, bring me leaves from pagan worship, and he brought him. If he said to him bring me leaves unspecified and he brought him from pagan worship? Let us hear from the following: Rebbi Jonah had a fever attack. They brought him from the penis of Dori and he drank. They brought to Rebbi Aḥa and he did not drink. Rebbi Mana said, if my father Rebbi Jonah had known from where it was, he would not have drunk. ....It happened that Eleazar ben Dama was bitten by a snake and Jacob from Kefar-Sama came to heal him in the name of Jesus ben Pandera, but Rebbi Ismael prevented him. He told him, I shall bring a proof that he can heal me. He could not bring proof before he died. Rebbi Ismael said to him, you are blessed, ben Dama, that you left this world in peace and did not tear down the fences of the Sages