I've read that Arnica is a good remedy for treating concussions, although I'm not sure if it's specifically meant for Post Concussion Syndrome. Has anybody heard of this and if so know more about it?

I don't know about arnica and PCS but if your do consider it as an internal treatment, it needs to be in a VERY low dose/concentration such as a homeopathic dose.

What symptoms are you trying to treat?

I have wondered about using Arnica for concussion, more severe brain injury and stroke.

I know that it works wonders for bruising. It seems that it could be beneficial for healing the brain. Has anyone heard of any studies that show evidence that it works?
Jena
*edit*

Comparing how muscle cells heal with brain cells is inappropriate.

Brain tissue is entire different than muscle and fleshy tissues. Brain cells must repair themselves or die. Any new neuronal cells are slow and few to appear if they ever do. Research suggests they do not replicate after the brain has finished maturing at about 25 years old. The repaired cells then need to remake make thousands of axonal connections in a very slow and haphazard format. These torn axons are the primary cause of PCS symptoms.

Muscle tissue/cells are replaced with new muscle cells on a regular basis even when there is not an injury.