I was checking my dog last night for ticks because she just came in from playing in the grass with the neighbor's dog. I noticed on her right side, around her back leg & butt, she has some blackish/reddish specks and a little bit of yellow flaking. I thought it could be flea dirt, so I rubbed it with a wet cotton ball. No red marks appeared on the cotton ball and the specks did not move. They're not in her fur, they're on her skin. The skin does not seem red or inflamed. And she doesn't seem bothered by it. I attached some pictures below. It does not appear to be all over her body, just on her back right. I just applied k9 advantix to her on Saturday night, but the spots I applied it to are normal. She eats commercial raw (Stella & Chewy's. I rotate the protein every month). She also gets Vibrant Pet supplements, fish oil, l'theanine for her anxiety and Calm Sheen (Chinese Herbs for anxiety. I just started this about a month or so ago). The treats she eats are grilled or boiled chicken, raw carrots, Zuke's mini naturals and Nutrisca Lamb kibble (the bag has been open for a few months because I do only use it as treats, so maybe this is the culprit). The only other things that happened recently was the fight with an outdoor cat exactly 1 month ago (no visible bites or scratches). She went to the vet & got a rabies booster 3 days after that. I don't recall seeing this skin funk when I checked her over after the cat attack. Maybe a reaction to the vaccine? She had full blood work at the vet w/ a thyroid test. Thyroid t4 was normal. I believe 1.7 on a 1-4 normal scale. Last year, she had a similar t4 result & when we ran a full thyroid panel with the free t4, her free t4 was a drop high. I sent her results to Dr. Dodds, who said it was fine for her age and breed. We did not run a full thyroid panel at the vet last month, just the t4. She hasn't had a bath in a few months. Her last bath was probably around April. Can a dog get something like this if they haven't had a bath in a while? I'm going to give her a bath on Wednesday and see if that helps. I'll try brushing her tonight to remove some loose fur. Otherwise, I will take her to the vet this weekend if it gets worse or the bath doesn't help. I really hope it's not a food allergy, because she eats so much different stuff, process of elimination will difficult. I know some of the pics are blurry, but have any of you experienced this on your dog(s)?