Pemphigus

My 4 year old husky/shepherd/collie mix has recently been diagnosed with an autoimmune disorder called pemphigus. It's a skin condition that affects the bridge of his nose, nostrils, the skin around his eyes and his ears. The skin in these areas forms a crust that is white to yellowish/green in appearance, which only goes away with the application of a topical steroid cream that our vet has prescribed. While his condition has not worsened, it is not getting much better. What bothers me about using this steroid cream is that I am applying it to my pups nose, and as you can imagine he tends to lick it off and ingests it. I try to avoid this by putting it on before his feedings so that he is distracted by his food, but this doesn't always work. I was wondering if anyone else has a furry friend with this disease and/or if anyone knows of any safer, less-toxic, more holistic approach to dealing with this condition?

I have been struggling with this for a few months now, so any information or advice would be greatly appreciated.

Thanks!