Sticks out the lower ribs in a child - a sign of rickets?Than it threatens?

Girl 10 months.On the protruding rib I have a neurologist on survey said vitamin D is lacking.Before that I did not notice anything at all, as the rib edges.My daughter is healthy, normal development, gets up from stomping feet.Vitamin D it drip with months of age 1-2 drops.Do I have something else to take?Or leave a child alone, the ribs themselves will come back to normal when he is grown?