When I had it there was no itch or pain at the site of the rash, just a rash. The pain radiated along a nerve from my stomach in a circular pattern to my shoulder then up my neck. It was intense and lasted several weeks.
I felt fortunate because the doc told me that for some people it lasts for months and even years.
Took about 3 months to fully heal, it was a mild spot so I'm told.