My amniotic fluid was also higher than normal and got the same advise from my OB. I managed to reach 38 weeks and had normal delivery. Just follow your OB advise about sugar. Although it will not totally reduce to normal, at least its not that high.
Try to drink some barley water. Not too much. It cures UTI effective for pregnant women. Cranberry juice helps too but it's very sour
Hey Anon, please do not worry, just follow your doctor's instructions here.