Exodus 9:10

They took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it up toward the sky; and it became a boil breaking forth with boils on man and on animal.

Deuteronomy 28:27

Yahweh will strike you with the boil of Egypt, and with the tumors, and with the scurvy, and with the itch, of which you can not 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
Yahweh will strike you with the boil of Egypt, and with the tumors, and with the scurvy, and with the itch, of which you can not be healed.