Dog Butt Blister My Dog Has A Swollen Butt. Is There Anything I Can Do For Now...?

My dog has a swollen butt. Is there anything I can do for now...? - dog butt blister

Well, that's my dog now, 14 years, and around the mountain. Skruff (my dog), he keeps licking his ass because his swollen, or have a light bulb or something, but his fans. My mother did not come to the vet, but because the doctor will then do laboratory tests Skruff, and it will cost lots of money. I just want to know it's something I can do now, its peak, until my mother called to make an appointment Skruff?