Ceftin helped me tremendously-- really got me over the hump to feeling 95% symptom free.
However, I can only take the brand Ceftin, which is a coated tablet. The non-coated version gave me GI issues almost immediately. So you might want to discuss this with your doc. and get the coated tablets.
Make sure you're taking good probiotics-- more than you think you need--
Ceftin is pretty powerful IMO.