What are some common signs of anaphylaxis?

Anaphylaxis is a severe, potentially life-threatening allergic reaction that can occur rapidly after exposure to an allergen. The signs and symptoms associated with anaphylaxis can manifest rapidly and include difficulty breathing, swelling of the face and throat, rapid heartbeat, and rash.

Difficulty breathing is often due to swelling in the throat or airway, making it hard for the person to breathe. This is compounded by the potential for bronchospasm, which constricts air passages further. Swelling of the face and throat is a hallmark of anaphylaxis, as it is indicative of widespread allergic inflammation. A rapid heartbeat, also known as tachycardia, can occur as a physiological response to hypoxia or due to the release of histamines during an allergic reaction. The rash is often a sign of skin involvement, commonly presenting as hives or generalized urticaria, which can accompany other systemic symptoms.

In contrast, nausea, fever, and fatigue do not represent typical features of anaphylaxis. While they can occur in various medical conditions, they are not specific to an acute allergic reaction. Headache, dizziness, and muscle aches are also nonspecific symptoms that are generally not associated with anaphylaxis. Sneezing, coughing, and runny nose