Shingles Rash More Condition_symptoms When Does The Shingles Rash Start To Hurt?

When does the Shingles rash start to hurt? - shingles rash more condition_symptoms

I covered the outbreak and I see the red lines on the back, I think it is now spreading a. I have a slight pain and itching. My dermatologist prescribed Valtrex, but I see no need, no pain, but I am pleased with the pain begin suddenly, May concern to 3 days or something. Does anyone have any experience with this every day?
Thanks for any help.