Come on Wombat, anitbiotics for a virus??? That wont work, you need an antiviral.
Yeah, no kidding. Antibiotics are for bacterial infections.
If your Dr is giving you these for a virus, he is going to to F you up with side effects, like fucking up your flora and giving you a yeast infection you can share with your Mrs. Also, he will be building up your antiobiotic resistance so that they won't work anymore when you get a real bacterial infection.
And don't get me started on Fluoroquinolone antibiotics--those are the worst for side effects and building up antibiotic resistance. Most Doctors give those out like candy.