My 6 year old male cat (mixed breed) has always been a bit greasy, but it has gotten worse over the past year, but it is just his tail. Over the past year he began losing fur on his tail, and it's pretty greasy, and it has brown flakes. I saved up, and I took him to the vet yesterday, and they told me he has seborrhea. The vet wanted to do blood work along with urinalysis to see if he had any underlying illness that would be causing it. His blood work, and urinalysis came back today with normal results, and nothing out of the ordinary. Now the vet wants to do a skin scrape test, but I'm worried about it being painful for my little guy. She said if nothing shows on the skin test that she would just give me a special mousse, and shampoo for him. My question is do you think the skin scrape is necessary at this point? She said she didn't suspect mites by looking at him. He's just so nervous I hate to take him back to the vet to be poked at again if I don't have to.