Hi Karen

I've been going through some of the same thing, starting with big abscess on my Morgan IR boy at Christmas.  I usually leave them out 24/7 except for extremes.  This year he definitely wants to come in to lie down. 

He's in boots with wool sox and  leg wraps.  The boots have studs. Even  in deep snow, he is nice and toasty. 

I finally found a place for bagged sawdust so have been using that.  It makes a big differnce, IMO, loading the foot more like standing on  a conformable surface.  My stalls unfortunately are cement floored with hard pads so this is a big help.  We're able to get the boots off on some nights, just to give him a break, and still keep him comfortable. 

No question cold can have an impact. If that is the issue, you should see improvement fairly soon after wrapping. I find when Beau points one foot he's usually got an imbalance or other mechanical issue.  It was how this abscess started as well.

Looking forward to spring.

Nancy C in NH
ECIR Moderator 2003
FACT: Analysis by the ECIR Group of the seasonal pattern of laminitis cases and the naturally occurring levels of fructan in grasses, has shown Fructan to be highly unlikely as the cause for laminitis. See  E. M. Kellon, VMD, The Internet as an Epidemiological Tool, 2013 NO Laminitis! Proceedings, Equine Cushing's and Insulin Resistance Group Inc.