Allergic reactions are the result of the immune system's response to substances that are usually harmless. Allergic reaction medium blockers are a class of medications that play a vital role in managing and mitigating allergic responses. These medications work by inhibiting the release of histamine and other substances that trigger allergic symptoms. Moreover, allergic reaction medium blockers can be used in the treatment of various allergic conditions, including seasonal allergies, food allergies, and allergic skin conditions like urticaria (hives).