6. Be Smart
Always carry your rescue inhaler. And not just while running. "There's no reason not to have it," Roberts says. "You can slip it in a lot of places, like the pockets in running shorts." You may never need to use your rescue, but if you do, you'll be very glad you have it.
Have a game plan. Confirm with your doctor the steps you should take if you have an asthma attack. Should you call the doctor's office so they can determine the severity of the attack? Or should you see if you can get relief from your rescue inhaler? Create an action plan that both you and your doctor are comfortable with.
More: Running With Allergies
Roberts' advice for when you get into trouble: "You want to clear this with your physician, but what I tell my patients to do is to take as many puffs of your inhaler as it requires to stop the attack, or until you start to shake so much (a side effect of the medication) that you can't hold your inhaler. For some people, that's four to six puffs every five minutes for several minutes. I start shaking after two puffs."
Consider wearing a medical alert tag. A bracelet or tag that indicates you have asthma can save first responders valuable time. "Giving the right medication quickly could be lifesaving," says Roberts.
Take extra precautions if you have severe asthma. If you've ever had what Roberts calls a "flash attack," in which you quickly go from feeling good to being in severe distress, you should either run with a friend or carry your cell phone—or both.
More: 9 Running Injury Prevention Tips
Sign up for your next race.