He may well have compacted or infected anal glands take him to the vet so they can be emptied as this is very uncomfortable for him and when they do empty them you may want to stand away from him because it will really stink when they empty them!
I Have A Dog With A Sore On Her Butt, And It Is Infected And Ooozy. It Has Been This Way For Several Months, Isn't Getting Any Better Or Worse. Is About 2 Inches Around, But Very Deep? Help!
first I would make sure someone didn't shoot my dog. If your dog was shot I would take it to the vet and report it to the law. If it is from an itch and bleeding I would start with cleaning it out with phroxide and then firt aid cream . If it doesn't start to heal or look better in the next day or so I would call the vet to see what they think would he good to do next.
Please take her to the vet, she has a butt abscess. The vet needs to pop it ( just like a zit) trust me if you do this she will be better in no time!!
No shes got an infected anal gland that needs to be emptied don't worry its nothing serious.