Charles Ellicott Commentary Job 2:7

"So Satan went forth from the presence of Jehovah, and smote Job with sore boils from the sole of his foot unto his crown." — Job 2:7 (ASV)

Sore boils. —Supposed to be Elephantiasis, an extreme form of leprosy, in which the skin becomes clotted and hard like an elephant’s, with painful cracks and sores underneath.