Sick day rules: a plain-language checklist for Addison's

Sick day rules tell you how to adjust hydrocortisone when you are unwell. Your endocrine team's plan always comes first — this checklist explains the concept.

When sick-day rules usually apply

  • Fever or infection
  • Vomiting or diarrhoea
  • Major injury or surgery
  • Significant physical stress

What to keep visible

Fridge copy, phone photo, wallet card, and a note in your medication tracker.

Full sick day rules guide · Missed dose guide

Explore guides · Join beta