lboll,
1. Add probiotic as well while doing antibiotic ( I am also too new about this). you can search probiotic on TaoBao ( if you don't know, ask some local friends, they all know Taobao), you can get some probioitc on-line which is made in US, price is much higher than it in the US though.
2. I don't know your situation, I hesitate to say, but I do really want to suggest, if I were you I would go back to the US to see dr there right away. What I have had so far is always frustration+desperation.