In the case of an allergic reaction, which substance is often the cause?

In the context of allergic reactions, food and medications are common causes due to the way the immune system reacts to certain proteins or compounds present in these substances. When an individual consumes food or takes a medication that their body identifies as harmful, it can trigger an immune response. This response may lead to symptoms ranging from mild reactions, such as hives or digestive upset, to severe cases, such as anaphylaxis, which is a life-threatening condition requiring immediate medical attention.

Food allergies are particularly notable because they can affect a wide range of individuals and can arise at any age. Medications, on the other hand, can evoke allergic reactions in anyone regardless of prior exposure, making them critical to monitor when administering treatment in a medical setting. Understanding this background allows for a clear recognition of the significant role that food and medications play in triggering allergic reactions.