Why Do Allergy Shot Reactions Occur?
Allergy shot reactions occur because the immune system is exposed to small, controlled amounts of allergens during the treatment process. This exposure is intended to help the body gradually build tolerance to the allergen, reducing allergic symptoms over time. However, in the early stages of immunotherapy or during dosage adjustments, the immune system may still recognize these allergens as a threat. This recognition triggers an immune response, leading to reactions such as localized redness, swelling, or itching at the injection site. These reactions are common and reflect the body’s natural attempt to respond to the perceived allergen.
Systemic reactions, such as mild hives, sneezing, or nasal congestion, occur when the immune response extends beyond the injection site. These reactions are influenced by factors such as the individual’s sensitivity to the allergen, the dosage administered, and any underlying health conditions, like asthma. Severe reactions, though rare, happen when the immune system overreacts, resulting in symptoms such as throat swelling or difficulty breathing. Understanding the mechanisms behind these reactions helps healthcare providers tailor treatment to reduce risks while maximizing the effectiveness of allergy shots. Regular communication with a provider ensures the process is safe and beneficial.
