Except in the immuno suppressed shingles rash would be confined to a single nerve distribution only.No other way it spreads and the fears are unfounded.No worry please.
Shingles is an infection caused by the varicella-zoster virus, which is the virus that causes chickenpox. Shingles occurs in people who have had chickenpox and represents a reactivation of the dormant varicella-zoster virus. The first sign is usually a tingling feeling, itchiness, or stabbing pain on the skin. After a few days, a rash appears as a band or patch of raised dots in a particular dermatome.So shinglescannot spread from one dermatome to another just by touching.
Hope it helps.Take care and regards.
Shingles is most contagious through open wounds. The rash is only the initial part of the infection.