I had shingles a few years ago. They put me on Valtrex and a steroid. Medrol dose pack, and I didn't have all the trouble that you hear about. He should go to the doctor if he hasn't already. The meds really help. I still had the red line and some blisters, but they didn't hurt like crazy. I wish him luck, and take care of himself. The reddness lasted quite awhile as I remember.
Sue