Make sure you carry your injectable epinephrine in case you have a severe reaction while in flight. The air in planes is extremely dry. Using a saline nasal spray once an hour to keep your nasal membranes moist and more comfortable, and can be helpful to both allergy and asthma sufferers. If you have severe asthma and occasionally require supplemental oxygen, you may need additional oxygen at normal cruising altitudes of 35,000 feet. If you think you may need supplemental oxygen, you must arrange for this with the airline well before your scheduled flight.
Dust mites can lurk in carpeting, upholstery and ventilation systems of cars.
Before starting on a long road trip, turn on the air conditioner or heater and open the windows for at least 10 minutes to help remove dust mites and molds that may be in the system. Outdoor allergens, such as pollens and molds can provoke symptoms, so don t flood your car with them. Keep the windows closed when driving. Use your air conditioner, not an open window, if you need to cool down. Air pollution can make asthma and allergy symptoms worse.