About the book: 2020 / Dear readers, after several years of interruption in communication with you, the experience of a practicing doctor again forced me to take up the pen. Every day, seeing patients who were exhausted from their allergies and unsuccessful visits to clinics, I realized that I couldn’t help but write. I must try to help you understand the causes of your allergies. And to help you not in finding and diagnosing notorious allergens or new hormonal drugs, but in determining the true cause of your suffering. Once you know the cause, it is easy to overcome allergies. The publishing layout is saved in PDF A4 format.