In this series:Steroid injectionsOral steroidsTopical steroidsFingertip units for topical steroidsSteroid nasal sprays Reversing enlargement of blood vessels in the area they are applied to. They cause a narrowing of the blood vessels. Even though "keto" is a standard prefix in organic chemistry, the 1989 recommendations of the Joint Commission on https://www.northwestu.edu/?URL=https://tr.wikipedia.org/wiki/Vitamin