I really surprise today early in the morning because my neighbor gave me one box of green tea with mint flavor. I want to say thank you to my neighbor for her kind and thoughtful because she know that I have asthma and I took lipton tea before bed time. She told me to try the green tea coming from the package of her German husband. Anyway, her advice is green tea is best for asthma, just because she have also asthma and she proven it to herself and hope me too!