In this series:SteroidsOral steroidsTopical steroidsFingertip units for topical steroidsSteroid nasal sprays Oral steroids are used to treat a large number of conditions, usually by reducing inflammation or the effect of the immune system. Some examples include: Less common side-effects are derece listed above but will be included on the leaflet http://www.stes.tyc.edu.tw/xoops/