I recently had a mild case of shingles. I only had a couple of small patches on my upper back and a few individual blisters on my left arm. The blisters healed a few weeks ago but I still have the rash on my back. It is preventing me from working because I am a flagger for an asphalt company and I cant tolerate the pain of constant sun on my back all day. It is miserable even thru my clothing. How long does it take for the rash to go away and is there anything you recommend putting on it? My doctor only has me taking an antiviral medication. Thanks