What Are the Three Stages of an Allergic Reaction? A Friendly Guide to Understanding Your Body’s Response
When you run into an allergen—say, pollen or pet dander—your immune system can totally overreact. This overreaction actually unfolds in three main stages, which explain how and why those annoying symptoms show up. The three stages of an allergic reaction are sensitization, activation, and the effector phase. First, during sensitization, your immune system notices the…