Steady deterioration is also a warning sign that may mean an injection of adrenaline is vital. Play safe and use your AAI, if you have any suspicion that a reaction is getting worse. Your allergy specialist should help you understand in advance what symptoms provide a signal that a severe reaction is occurring.
The BSACI recommends that a written Allergy Action Plan should be provided by your doctor or allergy specialist, which should be individually tailored for each patient and should include advice as to when the adrenaline auto-injector should be used and first aid measures such as positioning.
Positioning is important. You should lie down with your legs raised to help blood flow back to your heart and vital organs. If you are struggling to breathe, you may need to be propped up, but this should be for as short a time as possible. You must avoid any sudden change in posture. You must not stand up, or sit in a chair, even if you are feeling better. This could lower your blood pressure drastically causing your heart to stop.