Exodus 9:10

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

Deuteronomy 28:27

The LORD will strike you with the boils of Egypt, and with tumors, and with the scab, 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
The LORD will strike you with the boils of Egypt, and with tumors, and with the scab, and with the itch, of which you can not be healed.