Suggest Treatment For Shingles Pain On Front And Back Above Waistline With Minimal Rash

Shingles pain on front and back above waistline with minimal rash. Sometimes it feels like muscle spasms or Sharp electric zap on front side. Why isn't there more information on this? Went to emergency room, those words are so untrue. 6.5 hours later I was sent home with pain med and told I have diverticulosis. I need to get better, how? I am on valacyclovir and lidocaine patch. Is there anything I can do?