What should be done if a customer has a severe allergic reaction?

In the event of a severe allergic reaction, the first and most critical step is to call emergency services immediately. This response is essential because severe allergic reactions, also known as anaphylaxis, can escalate quickly and can be life-threatening. Prompt medical attention is vital to ensure that the individual receives the appropriate treatment, such as the administration of epinephrine, which can counteract the effects of the allergy.

While providing water or attempting to transport the individual to a hospital may seem helpful, these actions could delay necessary medical treatment that they need urgently. Additionally, waiting to see if symptoms improve can result in worsening conditions, increasing the risk of severe complications or even death. Thus, prioritizing the immediate summoning of professional medical assistance is the most appropriate and effective action to take in such emergency situations.