This book provides an in-depth exploration of the mechanisms of action, clinical applications, and future possibilities of herbal antivirals, drawing on centuries of traditional knowledge as well as current advances in pharmacology, virology, and immunology. Every chapter is carefully designed to give readers a comprehensive grasp of how herbal medicine can support the body's defenses against viral invaders. Readers are guided through the basic concepts that underpin viral infections, from the fundamentals of virology to the complex molecular mechanisms controlling viral replication and host immune responses. Using this lens, they can better understand how herbal antivirals affect these processes and potentially open up new therapeutic intervention options. The book also explores the bioactive substances present in medicinal herbs, elucidating their molecular makeup, modes of action, and possible synergistic effects in combination treatments. Readers are exposed to a varied pharmacopeia of herbal antivirals, ranging from well-known botanicals like echinacea and elderberry to lesser-known species like Andrographis paniculata and Astragalus membranaceus, with an emphasis on cutting-edge research and new trends. Important subjects covered in "The Science of Herbal Antivirals" include pharmacokinetics, safety concerns, legal frameworks, and the assimilation of herbal medicine into conventional medicine. The case studies, success stories, and thoughts on future paths encourage readers to adopt a more comprehensive strategy for treating and preventing viral diseases. For everyone interested in the possible advantages of herbal medicine, whether they are a researcher, herbalist, healthcare professional, or just a layperson, this book is a vital resource. It thoroughly introduces herbal antivirals and their critical role in protecting global health.