"This entry in the You Can't... series explores the science, physiology, symptoms, treatments, and main causes of common ailments. Colds, bellyaches, diarrhea, earaches, flu, skin conditions, allergies, germs, viruses are featured. Humorous poems appear throughout, and the book is topped off with a page of simple activities and kick-starting questions that expand the child's understanding of the subject matter."-- Provided by publisher.