Do you think this is a new relapse? If it’s been going on for some time, it’s probably too late for steroids to help (even assuming you wanted them), so it’s a case of riding it out. Eventually, given a bit of time, the hug and the stiffness will ease a bit, or maybe a lot.
You could try talking to your GP about drugs. The most common drug used for stiffness and spasms is Baclofen. But the downside is that it can make your muscles weaker, so you need to start on a very low dose and work up very very slowly. But that could help with your stiff legs and maybe the ‘hug’ too. Tingling could be helped with Amitriptyline, but that’s something that works best when you take it in the early evening, so it helps with sleep as well as tingling, pain or burning sensations. Obviously, you pick one symptom and try to find something that works for easing that symptom, rather than throwing a load of different medication down your neck at once!
You might find that some physiotherapy might help. If you don’t already see a physiotherapist, then maybe you could ask for a referral to a neurological physio?
It’s a hard time when you’ve recently been diagnosed. There is such a lot to learn about how your body works and what is now ‘normal’ for you.
Best of luck with it.