Hveragethi--Gut flora still not repopulated! Pls help

I'm the one who took Phellostatin and destroyed my gut flora. You had told me to take Kefir and oat bran, etc. It's been a couple of months now since doing so and am still not back to a normal bm. And to make matters worse, since 70% of our immune system is in our gut, I've been sick 3 out of the last 4 weeks! I'm very concerned about my immune system and its ability to protect me.

What can I do, please?