The role of steroids in not preventing ED re-attendances following allergy has been added to the Anaphylaxis page.
Grunau, BE, Wiens, MO, Rowe, BH, et al. Emergency Department Corticosteroid Use for Allergy or Anaphylaxis Is Not Associated With Decreased Relapses. Annals of Emergency Medicine;66(4):381-89. http://dx.doi.org/10.1016/j.annemergmed.2015.03.003.