My 16 week old Cocker has a tiny dry patch of skin on her side.  We noticed it about 2 weeks ago and took her down the vets as it looked like a small graze.  They had a good look and said they suspected a spider bite which had iritated her and she had nibled the fur off.  We treated (on their advice) with Stronghold, Hibiscrub for a week and Bob Grass' Skin cure, then did the skin cure alone for another week.  It looked good and the fur was starting to grow back.  Last night I was grooming her and I noticed that the fur was very short again and there was now a dry patch where the skin looked a little flaky.
We've put her back on the Skin Cure and will make an appt at the vets but has anyone seen this / got any advice?