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A 42-year-old member asked:

Why do steroid inhalers cause thrush and infections of my mouth?

2 doctor answers11 doctors weighed in
Dr. Alex Martinez
Specializes in Allergy
They affect immunity: Corticosteroids in inhalers have been very helpful in reducing asthma flares. However, they can cause side effects, including thrush, a local yeast infection in the mouth and throat. This is because the anti-inflammatory effect of the steroid also reduces the immune response against microbes, including viruses, bacteria, & fungi. Rinsing your mouth after using these inhalers helps reduce thrush.
Dr. Maziar Rezvani
Allergy and Immunology 22 years experience
Thrush=Candida: Inhale steroids cause compromised cellular immune deficiency. With inhaled steroids and thrush , this is a localized deficiency which promotes fungal growth, specifically candida. It can be prevented by using an aerochamber and treated with swish/swallow topical antifungal agents.

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Last updated Apr 1, 2019


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