Exodus 4:6-7

4:6 The Lord also said to him, “Put your hand into your robe.” So he put his hand into his robe, and when he brought it out – there was his hand, leprous like snow! 4:7 He said, “Put your hand back into your robe.” So he put his hand back into his robe, and when he brought it out from his robe – there it was, restored like the rest of his skin!

Exodus 8:24

8:24 The Lord did so; a thick swarm of flies came into Pharaoh’s house and into the houses of his servants, and throughout the whole land of Egypt the land was ruined because of the swarms of flies.