I would definitely talk to your doctor about this, as I've heard that Botox is a big NO for those of us with SMA. However, I have tried acupuncture and that did help a little bit.

I have not used it nor have I heard of it before now

Don't think it would work for sma need more research done.

Yes I have tried Botox and it works my muscle stiffness was more loose and I was able to move my wrist and ankle more. All it is an injection but helped me and can help others.

5 Neurological Conditions You Can Treat With Botox
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Dr. had suggested Botox as a tendon release for my ankles.
After researching it, found out I'd only get 10% improved motion, and it MIGHT last 6 months. So no I don't think I'd try it, if the results are that minimal.