Oh ok. I still refer to it as malignant hyperthermia, not CSS. That's a newer coined term.
Unfortunately, we don't know of any treatment that actually works yet. We can try Dantrolene, but there are some risks involved with this medication.
There are no cures yet, and we have no evidence of improvement with any homeopathic remedies or vitamins. At this point, the goal of therapy is to control stress and reduce the effect of heat stress on the brain
. We can use sedatives as needed, anti-seizure meds as needed and Dantrolene as needed.
Eventually we'll get gene therapy to cure this and other genetic diseases, but we're just not there yet in veterinary medicine.
If you want to consult with an alternative therapy vet, it won't hurt. You can try things and see if something works. If it does, they should definitely write up the case study, as we don't have many options for malignant hyperthermia in dogs.
I hope this helps, let me know if you have any other questions.