The main types of corticosteroids include oral corticosteroids, inhaled corticosteroids and topical corticosteroids. Oral corticosteroids are ones that you take by mouth. Inhaled corticosteroids go straight into your lungs. You apply topical corticosteroids directly to the affected area (eg your skin). See our section on Types of corticosteroid for more information.
Corticosteroids reduce inflammation and immune activity in your body. This means they can help treat conditions that involve inflammation and an overactive immune system. See our section on How corticosteroids work for more information.
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- Hodgens A, Sharman T. Corticosteroids. StatPearls. www.ncbi.nlm.nih.gov/books, last updated 29 June 2021
- Corticosteroids – inhaled. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised May 2020
- Corticosteroids – oral. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised June 2020
- Corticosteroids – topical (skin), nose and eyes. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised September 2020
- Corticosteroids, general use. NICE British National Formulary. bnf.nice.org.uk, last updated 2 September 2021
- Addison's disease. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised December 2020
- Steroids. Macmillan Cancer Support. www.macmillan.org.uk, reviewed 1 October 2020
- Corticosteroids, inflammatory disorders. NICE British National Formulary. bnf.nice.org.uk, last updated 2 September 2021
- Ulcerative colitis. NICE Clinical Knowledge Summaries. cks.nice.org.uk, last revised April 2020
- Influenza: the green book, chapter 19. Public Health England. gov.uk, last updated October 2020
- Principles for COVID-19 vaccination in musculoskeletal and rheumatology for clinicians. Arthritis and Musculoskeletal Alliance. arma.uk.net, updated 13 October 2021
- COVID-19: the green book, chapter 14a. Public Health England. gov.uk, updated 30 July 2021
- COVID-19 vaccination: guide for people with a weakened immune system. gov.uk, published 3 September 2021