For some, anti-anxiety drugs are a necessary evil. Benzos are not suggested. They have too many negatives. First, one wants to do everything possible without drugs to reduce anxiety. Some need an SSRI or SNRI or tetracyclic med to settle down so they can stabilize their life a bit.

Some feed their anxiety by refusing to reduce the intensity of their lifestyle or the demands they put on themselves. No meds will overcome that.

One should try to journal all of the sources of anxiety and the triggers that make it worse plus assess daily activity levels. If one was living an intense and stressful life before the concussion, these issues will be more challenging.

We've had this conversation before; what exactly makes anti-anxiety drugs, evil?

I can see how anxiety would be a deterrent to recovery and/or a reason why PCS persists (or potentially the cause of).
However, if that theory were true, why aren't anti-anxiety medications an automatic treatment route if symptoms don't clear within a few weeks?

The different anti-anxiety drugs interrupt normal brain chemistry. Benzos sedate the brain. SSRIs and SNRIs and tricyclic and tetracyclic drugs try to modify serotonin and norepinephrine functions. Brain nutrition and supplements can accomplish some of the same things drugs do without the side effects. Trading symptoms is something one must consider. As a necessary evil, the side-effects of meds may be less of a problem that the symptoms and limitations of unrestrained anxiety.

But, the non-drug ways of reducing anxiety should be implemented first so drugs, if needed, can be at minimum dose. I spent 14 years on an SSRI. It resolved one serious issue but caused a few others. I am glad to be off and function much better even though I still have over-stimulation issues.

Each drugs has discontinuation data in the literature. It shows how many discontinued the drug because the side effects were not tolerable. Sexually active people might find the bedroom turning into no man's land because of what some drugs do to sexual functions.

My friend says that neuro feedback has helped her immensely with identifying anxiety triggers. She said once she knew where the stress was coming from it was easier to sort out.