1.Forget to Shake the Canister
Your inhaler has medicine to help your breathing and a “propellant” that helps push it into your lungs. You shake the canister to mix them so you get the right amount of each. If you don’t, you might get too much of one and too little of the other. Instead: Shake the canister fairly hard 10 to 15 times before you use it.
2.Have Bad Aim
When the opening of the inhaler is pointed up at the roof of your mouth or down at your tongue, you may not get a lot of the medicine into your lungs where it can do the most good. Instead: Aim the medicine at the back of your throat so it gets into your airways.