Rhinitis allergy is one of the most common allergic reactions that are present in the world. With air, dust and other chemical reactions happening in your nose as you inhale, lead your immune system to work against them. This attack of the immune system leads to the creation of antibodies and an allergic reaction that cause symptoms like sneezing, coughing, chest congestion and so on. But they are the usual symptoms of a chest infection or flu as well. So the possibility of the test is solely dependent on the fact that the treatment is not working against the disease.