Dear Doctor: My 5-year-old grandson craves lead paint and has used his toothbrush to get at old layers of lead paint in his family’s renovated 1880s home. His development has slowed, and people think he’s autistic. If it’s the lead, what can we do?
Dear Reader: Your question covers several issues. We don’t make diagnoses in this column, so we would just note that the impulse to eat nonfood items — …