There are several pre-clinical studies that suggest cannabis could be useful in treating spasticity.
Sativex — which is a 1:1 CBD:THC oromucosal spray — was recently approved for the management of treatment resistant MS spasticity as add-on medication; and was shown to be a cost-effective treatment option for patients with MS-related spasticity. https://www.ncbi.nlm.nih.gov/pubmed/22681512
However, if you’ve yet to uncover the cause of the spasticity, there is a good chance that you have an electrolyte imbalance — most likely a magnesium and/or calcium deficiency.
https://www.amazon.com/Doctors-Best-Absorption-Magnesium-Glycinate/dp/B000BD0RT0/ref=sr_1_4_s_it?s=hpc&ie=UTF8&qid=1529454218&sr=1-4&keywords=magnesium – 2 tabs, twice/day
https://www.amazon.com/Natures-Bounty-Calcium-Vitamin-Softgels/dp/B00ZPU27JW/ref=sr_1_6_s_it?s=hpc&ie=UTF8&qid=1529454320&sr=1-6&keywords=calcium – 1/day
Please consult with a physician before starting any cannabis regimen. We could then evaluate your specific case and provide you with informed recommendations regarding product/strains, CBD:THC, dosing schedule and otherwise.
1:1 topical cream