Hmph. I was told nothing but paracetamol! 
Yep, that's the stock answer, especially for 1st trimester, along w/things like sniffing Olbas oil, steaming your face, hot towels on your face, etc. Go on American parenting boards - like the webmd pregnancy boards, however, and they get to take things like plain Sudafed and Sinutab.
Then again, the British don't call for innoculating pregnant women against the flu. Whereas the American guidlines do.
They'll usually give way, however, when you go in there w/nasties like ears that are mega painful to the touch, a fever, green mucus and bruised eyes from infected sinuses. Yuk.
They'll also let you have codeine for SPD.