In this study people who have clinical sign and symptoms of rhinitis (nasal congestion, rhinorrhea, sneezsing, itchy nose, headache, earache, Itchy throat, snoring or postnasal drip) after diagnosis by specialist of allergy will enter the study. Next we make an interview with patients and we explain the situations of the study for the patients. If patients Satisfy and desire the study, they will enter the study. From each patient, before treatment and after one month treatment, 5 ml blood will be taken. Treatment will be done in one month with anti-histamine (Fexofenadine) and Intranasal corticosteroid (budesonide). Blood samples will transfer to CBC vials containing anti coagulant (EDTA) and quickly will transfer to the lab. Next, using RNA extraction kit, RNA will be extracted from peripheral blood cells of taken bloods. Then, using Reverse transcriptase enzyme, extracted RNA will be transcribed to cDNA and will be store in -20 ºC until real time test. Then the level of expression of transcription factors, GATA-3، RORγt and Foxp3 in blood samples will be measured, in relative measurement, by use of Real-time PCR and sybergreen method.