question: My 16 year old son was bitten three weeks ago on the bottom of his left foot by a water moccasin. He was treated with 5 vials of  Crofab and stayed in the hospital for six days. He seems to have recovered very well but says he has loss of feeling on the left side of his foot. Will the feeling loss be permanent of will the feeling gradually return over a period of time? If so, any idea how long a period of time?