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Prednisone and other corticosteroids

Side effects of inhaled corticosteroids

When using a corticosteroid that you breathe in, some of the medicine may stay in your mouth and throat instead of making it to your lungs. This can cause:

  • Fungal infection in the mouth, known as oral thrush.
  • Hoarse voice.

You may be able to prevent mouth and throat irritation if you gargle and rinse your mouth with water after each puff on your corticosteroid inhaler. Be sure not to swallow the rinse water. Some researchers think that inhaled corticosteroid medicines for asthma may slow growth in children.