Efficacy of Bilastine Up-dosing (40 mg ) Versus Combination of Bilastine (20 mg )With Levocitirizine (5 mg) in the Treatment of Chronic Spontaneous Urticaria

This study aims to compare the effectiveness and safety of two commonly used antihistamines, bilastine 20 mg and levocetirizine 5 mg, in patients diagnosed with chronic urticaria. Chronic urticaria is a skin condition characterized by recurrent itchy wheals that significantly affect quality of life. Eligible participants will be randomly assigned to receive either bilastine or levocetirizine for a defined treatment period. The severity of symptoms, improvement in itching and wheals, and any adverse effects will be assessed during follow-up visits. The results of this study will help determine which treatment provides better symptom control with fewer side effects in patients with chronic urticaria.