I have an English bulldog , yesterday I was sitting in the yard and my dog was scraping its bum on the pavement so I went over and was checking her tail (they have vevy little tail its like stuck to her bum) so I was looking at her tail and I pulled it up away from her bum them I notested a place by her bum under tail had no fur on it it was vevy fleshy and it was a bit green , it had a strong flehy smell to it , I want to know what it might be before I take her the vet, im scared and worried , what do I do ,how do I cure it , what is it !