Get a bronchodilator or an inhaler. These products usually allow you to breathe better a few seconds after you use them. There are risks inherent to using these products, but if you use them as prescribed they should make your life easier. Ask your doctor about what kind of inhaler you should use.
Quick relief or preventative treatment inhalers are medicines that need to be administered properly. Make sure you breath deeply into your lungs as you depress the inhaler. Hold the medication in your lungs for at least 3 to 5 seconds before you exhale allowing it to take better effect.
Beware of certain medications like aspirin and penicillin if you suffer from asthma. These medications can actually worsen your asthma symptoms or trigger an attacks. Try to use substitutions such as paracetamol when you have a headache, or you are in pain, and be sure to ask your doctor what medications are safer to take.