One of my girls had an impacted crop a couple months ago. My dh and i thought the only solution was to open her crop and remove the blockage. We tried numerous other things including making her vomit. After the surgery the crop did go down but didn't stay that way for more than a couple days. She is now swollen again and as big as a balloon. She is also vomiting on her own. What else can i do to cure this for good????? This is a picture of all the dirt and hay we removed last time.