What should you do if a patient is experiencing a severe allergic reaction?

In the case of a severe allergic reaction, known as anaphylaxis, the most critical action is to call emergency services immediately. This is essential because anaphylaxis can rapidly progress and can be life-threatening. The symptoms may include difficulty breathing, swelling of the throat or tongue, and a sudden drop in blood pressure, which requires professional medical intervention as quickly as possible.

While administering the patient's prescribed allergy medication, such as an epinephrine auto-injector, might be appropriate in many situations, it is still vital to ensure that emergency services are contacted because the reaction can worsen even after medication is given. Access to professional medical assistance is crucial for managing severe allergies effectively.

Providing water or advising the patient to sit down might not address the severity of their condition and can even complicate their situation. Staying proactive and ensuring that professional help is on the way is the most responsible and necessary course of action in this scenario.