House Rabbit Community and Store
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The subject of intentional breeding or meat rabbits is prohibited. The answers provided on this board are for general guideline purposes only. The information is not intended to diagnose or treat your pet. It is your responsibility to assess the information being given and seek professional advice/second opinion from your veterinarian and/or qualified behaviorist.
Great to hear about Allen 
Question 1: blood work can determime if there’s still an active infection.
Last question: I wouldn’t massage it without consulting the vet. Crystals can have sharp edges which can damage tissue when pressed. This is why you never rub someone who has frostbite, and why gout hurts like mad.