Has anyone used a spot-on treatment for skin for their dogs? Tully has dander since being on a low fat diet and her coat is looking dull. I asked the internist about adding Omegas to her diet. He suggested a spot-on instead because it's not ingested. Apparently show people use it but I never heard of it. I suppose there's some logic behind it, but I wonder if not ingesting the omegas loses some of their value. Do they really spread across the skin, and if it only goes on the surface how does that add lustre to the coat? These are the ingredients of the Australian one called Dermoscent essential 6 10 essential oils (clove, camphor, gaultheria, rosemary, curcuma, oregano, lavender, peppermint, tea tree and cedar), hemp and neem oil. Dermoscent is rich is essential fatty acids (Omega 6 and Omega 3) and Vitamin E.