I've had asthma and allergies all my life. Now I'm 69. This has not stopped me from being a distance runner. I've learned a lot about how to deal with my allergies and asthma along the way. What I've learned is in my book, "Running with Asthma: An Asthmatic Runner's Memoir." It is available on amazon.com. If you run and have asthma and/or allergies, this book could help you.
Yours for better breathing,
John Terry McConnell