Hi havingms and smilingface,
Regarding Theralac: here's their website
http://www.theralac.com/
They supply great info on protecting the GI tract when on antibiotics. They even mention some folks actually "herx" when they first begin. I doubled up...in my beginning just in case, but now I take one a day, and I'm yeast free! thank goodness. Another good probiotic is Florastor.
http://www.florastor.com/
They both are expensive, but again I think sooo worth it! Getting a yeast problem or even C-diff isn't a good thing.
Do I feel better smilingface? YES!
I have had a numb left foot for at least 10 years....everyday it's feeling better, less numbness! My heads clearer, along with my stiff neck getting better, less eye floaters.
I'm scheduled for MRI's in a few months, I'll let you know those results!