My cat was a beautiful long hair calico. Recently, she has been overgrooming and pulling her hair out, so we took her to the vet to be looked at. They gave her a cortizone shot to help ease itching as they thought she could have an allergy. It turns out my cat had a heart condition we were not aware of that the shot excerbated. She died within hours... Not even a full day had passed. We will miss her dearly.