That's great to hear that allergy shots have helped alleviate your congestion! Allergy testing and subsequent immunotherapy, such as allergy shots, are commonly used to treat allergies and their symptoms.

Allergy testing is done to identify specific allergens that trigger an allergic reaction in an individual. This can be done through skin tests or blood tests. Once the allergens are identified, allergy shots, also known as allergen immunotherapy, may be recommended as a treatment option.

Allergy shots work by exposing the individual to small amounts of the allergen over a period of time. This exposure helps the body develop a tolerance to the allergen, reducing the severity of allergic reactions. Over time, the frequency and severity of allergy symptoms, such as congestion, can decrease as the immune system becomes desensitized to the allergen.

Thank you for sharing your insight.