Which practice helps prevent oral candidiasis in patients using inhaled corticosteroids?

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Oral candidiasis from inhaled corticosteroids occurs because the medication that settles in the mouth and throat can suppress local defenses and promote fungal overgrowth. Rinsing the mouth after inhalation directly removes residual steroid from these surfaces, lowering the amount of drug that stays in contact with the mucosa and thereby reducing the risk of thrush. Using a spacer with a metered-dose inhaler helps as well by reducing oropharyngeal deposition in the first place.

Other options don’t address the drug remaining in the mouth. Gargling hot water after meals isn’t specifically clearing inhaled medication from the oropharynx. Swallowing immediately after inhalation may move some drug down the esophagus but does not cleanse the mouth. Holding breath after inhalation targets lung deposition more than oral exposure and won’t prevent candidiasis.