Unsteady walking in a 20-month-old baby may be due to a calcium deficiency or late onset of walking. It is recommended to supplement with cod liver oil and calcium gluconate, and to maintain a light diet while increasing walking exercises. Parents should adopt proper treatment methods to help the child recover effectively without affecting their growth and development.

If a young child walks with an 8 shape on their right foot, consider undergoing plastic surgery, which can be quite effective. The cost is generally not very high, and treatment is available if conditions permit.