What steps should be taken to care for severe allergic reactions? (Select all that apply)

In the context of severe allergic reactions, providing oxygen is indeed an important step in managing the situation, particularly if the individual is experiencing difficulty breathing or has low oxygen levels due to anaphylaxis. Oxygen can support the individual’s breathing efforts and help ensure that vital organs receive enough oxygen during a critical time.

Using an epi-pen is also a crucial step; it delivers epinephrine, which constricts blood vessels, reduces swelling, and alleviates symptoms of anaphylaxis, such as difficulty breathing.

Applying a cold compress may not be beneficial for severe allergic reactions, as it does not directly address the underlying issues such as airway swelling or cardiovascular complications. Encouraging deep breaths might not be appropriate if the individual is struggling to breathe effectively due to severe swelling in the airways.

Therefore, while providing oxygen is a supportive measure, it's important to recognize that using an epi-pen is a primary intervention necessary for treating anaphylaxis in severe allergic reactions.