John Gill Commentary 2 Kings 5:14

"Then went he down, and dipped [himself] seven times in the Jordan, according to the saying of the man of God; and his flesh came again like unto the flesh of a little child, and he was clean." — 2 Kings 5:14 (ASV)

Then went he down, and dipped himself seven times in Jordan,
according to the saying of the man of God

He listened to the reasoning of his servant, and his passion subsided, and did as the prophet ordered him.

and his flesh came again like unto the flesh of a little child ;

clear and fresh, soft and tender as an infant, quite new flesh.

and he was clean ;

from the leprosy, and all the filthy symptoms of it.