After researching and reviewing various studies, it appears that Bepotastine may be a potential game changer for treating allergic bronchitis. This antihistamine drug has shown promise in reducing the inflammatory response that triggers coughing, wheezing and other bronchitis symptoms. While it may not cure the condition, it appears to significantly alleviate symptoms and improve the patient's quality of life. However, it's important to remember that every individual is unique and what works for one may not work for another. Always consult with a healthcare professional before starting any new treatment.