I can also guarantee you aren't alone! My lower hamstring gets as hard as a rock with terrible pain that either keeps me from sleep or wakes me up. Sooooooo.....my MS medical team (MS primary doc, MS rehab doc, PT) have had me try a million different things to wrangle it loose. I can say I've definitely found what DOESN'T work for me or it works, but not long enough to count. Exercise, heating pad, hot water bottle and acupressure don't help me. I stretch CONSTANTLY which helps a little with the pain, but doesn't last long. What you've probably noticed is even if your muscle loosens up a little it's
quick to snap right back into being a rock, right?! What does work for me: Baclofen 20-40mg every 6.hrs, Tizanidine 8-16mg every 6 hrs, Gabapentin for pain 600mg in am and afternoon and 1200mg at bedtime, Tramadol 100-150mg 3 times a day as needed for pain, and Cymbalta 60mg at bedtime for pain. My PT JUST had me try a TENS Unit for pain and I wish I had it my whole life. It'll take too much space here to explain it, so just check it out in Google. No RX needed. It works to minimize pain anywhere on my body. I have a crappy back and this does wonders for it. Last but not least is Botox injections. I just got injected so I need to wait to see if things loosen up, but I've heard from everyone these work great. Okay. That's it. I'm so sorry this is long. I just wanted to give you an idea how much time and effort and trial and error it takes to find some help with this problem. I like to say that every MS patient is like a snowflake, so what works for one person for spasms may not work at all for someone else. Good luck to you. It's frustrating as hell, I know. Just try and hang in there as best you can and hopefully some help is right around the corner.