Children's growing feet are vulnerable to ill-fitting shoes and infections. Maggie Jones gives tips on taking care of them At a nursery class in the London borough of Tower Hamlets the teacher was having trouble with one of her pupils. Four-year old Nasreen fidgeted, wouldn't concentrate, burst into tears for what seemed no reason, and was reluctant to move from her desk. Eventually, after several conversations with her mother and other staff, the teacher got to the root of the problem...