"Toxic: Heal Your Body from Mold Toxicity, Lyme Disease, Multiple Chemical Sensitivities, and Chronic Environmental Illness" is a book that sheds new light on the complexity of the illnesses mentioned by the author. It offers in-depth information on various treatments that have proven effective in improving the symptoms of these conditions. Over the years of his career, Dr. Nathan became aware of multiple underlying factors that led to the emergence of these ailments. This book offers hope to the patients and their families who lost faith in modern medicine.