Panacur nightmare?

["guest@endurance.net" <guest@endurance.net>]

tiffany D'virgilio tiffshorse@mindspring.com
Has anyone ever had a horse with a severe allergic reaction to Panacur? I rotated wormers for the first time about 4-5 days ago and used panacur. Though my mare was having a reaction to flybites, until this morning she was lumpy everywhere, had exudate running from several open places and had huge pockets of edema all over her body. Vet came out, 20 mg of steriod, antihistamines twice a day, and povidine washes. Thinks it was a bad allergy to something. We moved into our new place two weeks ago, so everything is new, but the panacur really stands out in my mind, as it was dosed the day before this started and Mosh has never had it before. Vet says to watch for laminitis from the steriod, and to call if not better in two days and much better in five. How worried about laminitis should I be. 
Also vet said not to feed bermuda because of impaction. Hmm. I guess I won't be doing that CTR in two weeks. Mare looks hideous and miserable. Must be carrying at least 20 pounds in edema. 
Tiffany