Here's a great research article on homeopathy to treat PCS, or as the article puts it "Persistent MTBI patients".

I've been experimenting with homeopathy and I have had some great leaps in my healing since I started. However, I have no real evidence that the homeopathy is what is causing those leaps, because they could just have to do with a number of supplements I am taking, or just time.

But, I thought you might like to read the article as well.

http://www.homeopathy.org/research/clinical/Chapman.pdf