Question

An adverse reaction can be localized; as in pain, swelling, and redness at the injection site. In addition, reactions can occur systemically with a fever, malaise, rash, drowsiness, or irritability.

Answer 1

Allergic responses can vary in severity, ranging from mild localized symptoms such as hay fever or hives to severe systemic reactions like anaphylaxis.

Step-by-step explanation:

Allergic responses can vary in severity, ranging from mild localized symptoms such as hay fever or hives to severe systemic reactions like anaphylaxis.

Anaphylaxis is a life-threatening allergic reaction that can cause a drop in blood pressure, difficulty breathing, and swelling of the throat, potentially leading to suffocation.

Treatments for allergies can include antihistamines for mild symptoms and injections of epinephrine for severe systemic reactions.