I have found that Colloidial Silver spray seems to help, though. The crusty stuff seems to clear up faster, and although she still lost hair the skin was not dry at all.
{An aside – this product is safe for humans; many homeopathic type folks use colloidial silver for a variety of purposes. Knowing that, my 15 yo daughter used this spray on her acne-ridden face and after just a few days her skin is clear and beautiful! I was ready to take her to a dermatologist, but don't need to now. She swears by it now. LOL}
http://www.3cdog.com/product_info.php?manufacturers_id=11&products_id=1573&osCsid=bbf
PEACE AND KINDNESS 4 OZ $13.00
Natural alternative to antibiotics and steroids. There is no disease causing bacteria that can live in the presence of PEACE & KINDNESS ingredients. Many strains of pathogenic microbes-viruses, fungi, bacteria or any other single-celled pathogen-resistant to other antibiotics are killed on contact and are unable to mutate without harming tissue-cell enzymes or friendly bacteria. Non-toxic to dogs, cats, horses, as well as humans, can virtually even be used on viral warts around the mouth. Completely tasteless, odorless, non-stinging and non-burning to sensitive tissues including the eyes. A safe all around germ-fighter. PEACE & KINDNESS stimulates healing in skin and other soft tissues in a way unlike any known other natural process, and it promotes new cell growth. PEACE & KINDNESS has a pH of approximately 6.5 and will not discolor coat or leave behind a residue.