Hello and welcome 
If you haven’t already, I recommend that you post on the Everyday Living forum because there will be more people on there who will have had a similar experience and good advice. For now though…
I really dislike neuros who diagnose benign MS 
That’s because it can only be diagnosed after the patient has been having relapses / symptoms for 10-15 years before they see him/her and, even then, MS often starts with only wee hints of what’s coming before showing itself properly and to count those years is a bit daft, in my opinion anyway. But that doesn’t help you so sorry for digressing.
It’s true that spinal lesions can be harder to recover from, but there are no absolutes with MS and many people with relapses involving spinal lesions make excellent recoveries. So, given that it’s still quite early days since Christmas too, you mustn’t give up hope that you will make a decent recovery from this relapse. I know it’s really hard to stay hopeful when everything’s so crap, but try to remember that you’ve recovered from things before and, although this one’s tougher for your body to fix and it’ll probably take longer, you might just recover from this one too.
Of course, we aren’t always lucky in recovery and we get left with all sorts of things. There’s no easy fix to deal with that mentally that I know of though Each time takes a little more of us and the loss hurts However, somehow or other, we get through it - we learn to cope with and adapt to whatever it is and then life gets back onto a more even keel and carries on, albeit a bit different than before. I suppose it’s a bit like being diagnosed: it knocks us for six, but we adjust and accept and then carry on. So I guess what I’m saying is that you’ll pull through, but you need to give it time. Also make use of every bit of help offered! Meds, physio, occupational health, counselling… And if nothing’s being offered, then start asking!
No real tricks that I know of to help recovery other than lots of rest. It also seems sensible to eat healthily and to get back into some gentle exercise when you are able: the stronger and healthier your body is, the better able it will be to repair the current damage. Do get advice about what exercises will help with your mobility and anything else - your GP can refer you to neurophysio if you aren’t already seeing one. If I were you, I would also be taking a vitamin B supplement (it helps with cell repair) and a vitamin D3 supplement (my MS specialist neuro recommends 3-5,000iu a day).
Well done to your husband for nagging you into posting - and I hope you find the forum a lot of support (we all do!)
Karen x