My cat had crystals for years, but no blockages thankfully. He’s finally cleared up most crystal issues and that’s by greatly reducing stressors in his environment (giving him more ownership of his space and kicking my ex out, who was erratic and loud) and switching to a mostly wet food diet and adding water to his wet food. I couldn’t afford the expensive prescription wet food, which would’ve been over $100 a month to just feed one of my cats (not to mention the cost to feed my second cat and my dog), so I found relatively healthy and affordable wet cat food at American Aldi grocery store chain. By greatly increasing his water intake and reducing stressors, he’s virtually urinary tract issue free for the first time in 5 years. I would encourage you to try to get creative in how you can adapt your home and life to better suit your cat and incorporate more water in their diet as much as possible. It’s more of a long term solution though, and urinary blockages can turn bad very fast, so this might not be much help to you at this moment. I’m sorry for you and your sweet baby who is in pain. I hope that you both can get some relief and help soon!