Help ruined my girlfriends quilt don’t know what to do!!
 

So my girlfriend has a quilt hand made by her grandma who now is to old to make a new one. My puppy peed on it so I panicked and threw it in the washer. It came out crusty and hard. Is there a fix to this? Or at least a way to make it better? The best answer I found on google was to let it soak in fabric softener or conditioner. But I want to get input from people who are experienced before I go and accidentally make it worse. From what I can tell it’s made from cotton but not 100% sure. Really know nothing about fabrics or quilts

the quilt for reference:
https://imgur.com/gallery/KvIFZYb

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