What advice should be given to an asthma patient using a corticosteroid inhaler to prevent oral complications?

Patients using inhaled corticosteroids should rinse their mouth with water and spit (or gargle) immediately after each inhaler use. This removes corticosteroid particles deposited in the mouth and throat, significantly reducing the local immunosuppression that predisposes to oral candidiasis. Using a spacer device with metered-dose inhalers also reduces oropharyngeal deposition. Regular dental check-ups to detect early candidiasis and xerostomia are also recommended. This simple hygiene measure is a critical patient education point for all corticosteroid inhaler users.