In this series:Steroid injectionsOral 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: Animal steroids include compounds of vertebrate and insect origin, the latter including ecdysteroids https://boinc.berkeley.edu/home.php