If you think you may become too ill to take your med by mouth, you need to ask your doc for an emergency injectable
, which I think is usually in a dose of 50 or 100 mgs. of hydrocortisone. You need to have a medical alert bracelet or wearable ID of some kind, for emergency situations.
Yes, you would have to go to an ER, or other doctor's office for treatment in the event of stomach flu, vomiting, or anything that prevents you from taking these extremely important meds.