The word "behold" alerts us to a new person in the story. Your language may have a way of doing this. English uses "There in front of him was a man" (See: [[rc://en/ta/man/translate/writing-participants]])
Edema is swelling caused by water building up in parts of the body. Some languages may have a name for this condition. Alternate translation: "was suffering because parts of his body were swollen with water"