Smelly dog I have been babysitting a very old Sheltie named "Peanut". He does smell all the time. I took him to the vet and she found that he had Seborrea Dermatitis. It's very common in Shelties. I got a prescription shampoo and I bath him every 3 days. I just recently found that he had another spot. Peanut is an antique so I think he's just gotten old and everything is going to pot, just like me. Peanut has 3 beds around the house so he can always be close to me and be comfortable. I am supposed to be giving him the best quality care. I have tried to clean his anus gland but no luck there. I have had him shaved as his permanent owner never combed his hair and he was so matted that his legs were not able to move properly. I have noticed that my husband and I are suffering from allergies as of lately. So I think it's him causing us to have allergies. We are taking Zyrtec. He's so frail I just can't in good contiousness let him go to another person. See if that's not your problem. I hope this helps you.