'Blains' in the Bible

and it hath become small dust over all the land of Egypt, and it hath become on man and on cattle a boil breaking forth with blains, in all the land of Egypt.'

And they take the soot of the furnace, and stand before Pharaoh, and Moses sprinkleth it towards the heavens, and it is a boil with blains, breaking forth, on man and on beast;