Any recommendations for alternatives to medication for the treatment of PTS?

Find a calming hobby. Fishing, or hiking. Whatever you choose needs to be quiet and calming, preferably shouldn't include the regular use of firearms, as that is a possible trigger.

Also, there are therapy dog programs out there so you don't end up hiking alone.

Weed!

J/K, maybe a PTSD Assistance Dog.

Yes. I never like psychotropic medications, as we prescribe them too frequently. LTC (Join to see). Meds should offered with counseling, not alone. I believe the best remedies are talking it out/counseling, staying active and busy, and exercise. Finally, I believe dogs (animals) provide great comfort; we have 4 and it is near impossible to be sad around a dog(s).

If you want an alternative to the standard PTSD treatments you need to ride a motorcycle. Get out on two wheels and leave your issues behind for a while. I might not be here if I couldn't have ridden as soon as I did after coming home. Nothing like having the wind at your face to help you forget your problems. Plus chicks dig it! LMAO :-)

Try some essential oils. Young Living has pretty good products.

I have always found that a couple hours of martial arts training to be helpful at clearing the mind. It works the body, and calms the mind.

Meditation worked for me. That, and writing out my experiences, basically reliving it down to every smell, feeling...everything.

I only WISH I could get my son-in-law interested in helping himself thru other means besides the drugs the VA shoves at him.
He takes them, feels fine for a month or two, then he decides they just don't do anything, stops taking them, ends up back at the psych ward because he dumps them all cold turkey.
When he feels good, he does nothing but play video games, which really can't be all that good for him, considering his problems started in a war zone, right?
We try to get him out of the house, doing something like walking, or riding a bike, or anything that might be physically demanding, and he just refuses.
If there is a way to get him to help himself, I'd love to hear it, because right now, we just haven't got a clue as to how to help him when he refuses most every form of help.