In the event of a severe allergic reaction, what should be done first?

In the event of a severe allergic reaction, it is crucial to prioritize the safety and well-being of the individual experiencing the reaction. Calling for emergency medical help first ensures that professional assistance is on the way, which can be critical in managing severe cases such as anaphylaxis. Time is of the essence in such situations, as rapid access to medical interventions, including the administration of epinephrine, can prevent serious complications or death.

While administering an antihistamine may help relieve some mild allergic symptoms, it is not a substitute for immediate medical attention in severe cases. Applying ice to the affected area or verifying medication use are also not appropriate initial steps when a life-threatening allergic reaction is suspected. The priority should always be to get professional medical support, as they can provide the necessary treatments and interventions to manage the allergic reaction effectively.