Starsha - I took antibiotics for a sinus infection at about 16 weeks from memory. I just couldn't stand the pain any longer, it was stopping me from sleeping. I rang and double checked with my ob before I started taking them and he assured me it was perfectly safe. I also checked with the chemist when filling the prescription, again he said it was fine.

So go for it, you'll be so glad you did once the infection clears up.