Take it from me, the super cautious nurse... be careful taking antibiotics unless really necessary. For things like the common cold, they will not do anything. Just be careful, you do not want a superbug to develop. Also make sure you take a probiotic while you are on them. Something like acidophilus, culturelle, or even eating yogurt every day. The antibiotics kill good bacteria in your stomach and elsewhere in your body, so the probiotic will help replace the ones the antibiotic kills.
Now back to your regularly scheduled programming...