So I took her into a stable (not usually stabled and doesn't much like it in there but it was warm and dry), sweat-scrapped some water off, towled her face and body, put her coolers on, mixed up some warm sugar beet (not her usual breakfast but she's had similar things recently on trial which she liked), gave her a haynet and waited until she dried out and stopped shivering until I put her light turn-out on and put her back out in the field. I spent about an hour and a half to 2 hours with her, and she was not a happy pony while in the stable. After I turned her back out she was warm under her rug and not shivering, but still acting sulky from the rain, but like I say, that's not unusual for her.
So, now I'm worried (I always worry haha). Did I do the right thing? Is there anything else I could have done to speed up the drying and de-shivering process? I hate the idea she was cold and wet and unhappy. I feel terrible that she got cold from my naivety, but she usually copes pretty well with bad weather and last night I thought she'd be fine. I guess I just want reasurance I did the right thing this morning after being so stupid last night...