What happened to King Herod when he accepted the crowd's praise as a god?

Answer: He was eaten by worms and died

Because Herod did not give glory to God, an angel of the Lord struck him down, and he was eaten by worms and died.

“On the appointed day, Herod donned his royal robes, sat on his throne, and addressed the people. And they began to shout, “This is the voice of a god, not a man!” Immediately, because Herod did not give glory to God, an angel of the Lord struck him down, and he was eaten by worms and died.”— Acts 12:21-23 (BSB)