Gilead was a region famous for having people skillful with medicine. Yahweh is mocking the Egyptians by telling them to go get medicine, but he knows it will not help them. (See: [[rc://en/ta/man/jit/figs-irony]])
The people of Egypt are spoken of as if they were the virgin daughter of Egypt. Alternate translation: "people of Egypt" (See: [[rc://en/ta/man/jit/figs-metaphor]])