He predicted her son’s birth. Later when her son got sick and died he raised him from the dead.

Source:

I Kings 4:8-37

The King of Syria sent a leper to the King of Israel to cure him. The King of Israel thought he was looking for an excuse to start a war. Elisha sent word to the King saying send him to me and “he shall know there is a prophet in Israel.” Who was the leper that Elisha cured?

His name was Naaman and he was a general in the Syrian army. He was cured by dipping in the Jordan river following Elisha’s command.

Source:

2 Kings 5