Yep, everything was headed in the right direction for the 2 days after the drain was put in. Then things just didn't look right.
The drain was taken out about a week ago and since then the swelling is all coming back. The vet's first thought was that maybe he had been a bit hasty about taking the drain out and that there was still fluid behind the wound that was trapped.
However, he stuck a needle in it today and tried to get fluid out and came up with absolutely nothing, so the swelling is coming from something else.
If it is a foreign body, vet thinks it has gone in quite deep so the clinic she has been referred to will need to ultrasound to locate it and then go in surgically to remove it.
Poor pony owner has only had her for about 4 weeks.