Exodus 9:10

So they took furnace soot and stood before Pharaoh. Moses threw it toward heaven, and it became festering boils on man and beast.

Deuteronomy 28:27

“The Lord will afflict you with the boils of Egypt, tumors, a festering rash, and scabies, from which you cannot be cured.

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 afflict you with the boils of Egypt, tumors, a festering rash, and scabies, from which you cannot be cured.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.