Abby had an AWFUL time this spring with crystals...she cried & cried (and so did I!!!) She took several meds...Enrofloxin, Baytril, Amoxicillin, & Rimadyl in pill forms, plus all of the shots...BUT the thing that truly did the trick for her was called METHAGEL. It comes in a tube, similar to a toothpaste tube..and is a brownixh color, the smell reminds you of molasses...I had squeeze out about a 1" legth of it for her each morning, which she happily licked of of my finger. She loves it, thought it was a treat. She did not end up needing surgery, because on the very day that they were prepared to operate, the crystals were breaking up much better. (and boy, was it fun to collect samples from her!!) My vets were amazed at the turnaround once she started taking that.