Unfortunately, time got away from me, and I just started weaning my 09 filly last week (the winter weather, and lack of an extra pen (snowed under all winter) didn't help); the mare's bag got a little enlarged and firm the first day, I've been checking her daily, and slowly day by day, its softening and deflating, I've done nothing for her and she has been just fine (I've been checking and if I had seen/felt changes, I would have done something for her, banamine, warm compresses, etc). [i did not manipulate her udder in any way, just lightly cupped it in my hand to feel for warmth, firmness and any changes.]