I have been using a preventer inhaler for the past 3 months and my voice has changed. Could it be due the medication?

Some people experience voice changes, a sore mouth or throat, or oral thrush when taking inhaled corticosteroids. These side-effects are more common at high doses, or with some types of inhalers. Rinsing the mouth out afterwards can prevent oral thrush but it does not prevent voice problems. If one is using an inhaler, one can reduce voice and mouth side-effects and improve the amount of medication which reaches the lungs by adding a spacer.

If one has voice problems, one should see the doctor for advice about whether the medication dose can be reduced, or whether a different medication or inhaler can be taken.