Exodus 9:9
And it shall become small dust in all the land of Egypt, and shall be a boil breaking forth with blains upon man, and upon beast, throughout all the land of Egypt.
Cross-reference
Deuteronomy 28:27
Allusion
Deuteronomy 28:27 lists 'the boils of Egypt' as a covenant curse, directly referencing this plague.
Deuteronomy 28:35
Parallel
Deuteronomy 28:35 also mentions 'boils that cannot be healed' as a curse, paralleling the plague's severity.
Revelation 16:2
Allusion
Revelation 16:2 again: the first bowl brings foul sores, mirroring the plague of boils on Egypt.
Leviticus 13:18–20
Parallel
Leviticus 13:18-20 gives laws for diagnosing leprous disease in a boil — same physical condition but in ceremonial context.
Job 2:7
Parallel
Job 2:7 describes Satan afflicting Job with painful boils, a similar physical affliction.