Exodus 9:10

And they took ashes of the furnace, and stood before Pharaoh, and Moses sprinkled it up toward heaven, and it became a boil breaking forth with sores upon man and upon beast.

Deuteronomy 28:27

LORD will smite thee with the boil of Egypt, and with the emerods, and with the scurvy, and with the itch, of which thou cannot be healed.

Treasury of Scripture Knowledge

Summary

And they took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it up toward heaven; and it became a boil breaking forth with blains upon man, and upon beast.

Bible References

A boil

Deuteronomy 28:27
LORD will smite thee with the boil of Egypt, and with the emerods, and with the scurvy, and with the itch, of which thou cannot be healed.