Shingles usually resolves within 3–5 weeks, but secondary bacterial infection and chronic pain due to post – herpetic neuralgia may occur. Vaccination reduces the frequency of post – herpetic neuralgia. Advice 5. Ask him to take Zostavax vaccine if your husband’s age is more than 50 years under medical supervision 6. For fresh attack, your husband can take valaciclovir 500 mg three times daily per oral if blisters are covering large area. There is no need of oral valaciclovir if blisters are localized to smaller area 7. Apply locally aciclovir 3% ointment five time daily 8. Avoid mental stress as it aggravates shingles For post – herpetic neuralgia/neural pain 3. Gabapentin 100 mg three times daily after meal for 15 days 4. Methylcobalamin 500 mcg once daily per oral for 3 months I hope this information will help you. I will be happy if you ask another question Thank