I have a 6 year old bulldog. She is currently on antibiotics for an infection in her feet. I wipe her tail pocket out every other day and it usually results in some hair coming out. Today, I wiped it out and the wipe was brown. I use wipes with the blue solution from the vet. I read about tail pocket infections and I don't know at what point she should go to the vet. Any suggestions? Thoughts?