I am Mysticdoc, experienced Internal Medicine Specialist.
I am here to help you with your concerns.
Based on your description, this sounds like shingles rash.
Shingles caused by the reactivation of the chicken pox virus.
This responds well to acyclovir 800 mg 3 times daily for 7 to 10 days.
Valacyclovir tablets are another good option.
The side effects are less with valacyclovir.
But acyclovir at the above dosage should be fine, if valacyclovir is not available.
It is better if you can post a picture here for further confirmation.
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