Allergy shots, also known as allergen immunotherapy, are a medical treatment designed to reduce sensitivity to specific allergens. During this process, patients receive regular injections containing small amounts of the allergens that trigger their allergic reactions. Over time, these shots help the immune system build tolerance, leading to fewer symptoms and improved quality of life. Typically, the treatment begins with a buildup phase, where the dose is gradually increased, followed by a maintenance phase with less frequent injections. Allergy shots can be effective for various allergies, including those related to pollen, dust mites, and pet dander. However, they require a commitment of several months to years for optimal results.