@Mandi - From your description, there is no way of telling whether it is viral or bacterial in origin. The fact that your Doc prescribed amoxycillin means that they think it is bacterial.
If it was viral, I would have expected it to have resolved itself within 3-5 days, rather like a common cold. The fact that, 14 days post diagnosis (and presumably a few days before that, to warrant you seeing the Doc) it hasn't gone away is suggestive that it is chronic, bacterial, and higlhyunlikely to resolve on its own (It has had 2-3 weeks to do that already, after all).
The Doc prescribed amoxycillin - By far the most sensible course would be to take the antibiotics as prescribed - Why are you delaying, and prolonging your illness?