MSFinals-3301

A 26-year-old patient, who is 22 weeks pregnant, has been experiencing severe allergic rhinitis. She complains of bilateral eye puffiness and itching, rhinorrhoea, and chronic nasal congestion. She has tried nasal sprays before, but they were ineffective. Due to her pregnancy, she has refrained from taking any medication, but her symptoms are now affecting her work and sleep. What is the most suitable initial medication to recommend for this patient?