'Ulcers' in the Bible

Jehovah will smite thee with the ulcers of Egypt, and with boils, and with the scab, and with the itch, whereof thou canst not be healed.

Jehovah will smite thee in the knees and in the legs with evil ulcers, whereof thou canst not be healed, from the sole of thy foot unto the top of thy head.