Sinus infection?

I've been sick/congested for weeks now but it's only gotten worse in the last week so I went to urgent care last night where they diagnosed me with a sinus infection and developing ear infection. They prescribed me an antibiotic, Ceftin and flonase. Anyone taken this while pregnant? I'm currently 30w2d...just wanting some relief finally! I had some mild sinus congestion when I was pregnant with my son, but nothing like this...my sinuses/ears feel like they're throbbing!