Treatment of Shingles (Herpes Zoster)
The recommended first-line treatment for shingles is oral antiviral therapy with valacyclovir 1 gram three times daily for 7 days, initiated within 72 hours of rash onset to reduce acute pain and prevent complications. 1, 2
First-Line Antiviral Options
- Valacyclovir 1 gram three times daily for 7 days is the recommended first-line treatment due to its convenient dosing schedule and proven efficacy 1
- Alternative antiviral options include:
Timing of Treatment
- Antiviral therapy should be initiated as soon as possible, ideally within 72 hours of rash onset for maximum effectiveness 1, 4
- Recent evidence suggests that starting treatment even after 72 hours may still provide some benefit in reducing zoster-associated pain 5
Special Populations
- For immunocompromised patients with severe disease or complications, intravenous acyclovir 5 mg/kg every 8 hours is recommended until clinical resolution 6, 2
- Treatment duration may need to be extended if healing is incomplete after the initial course 2
Pain Management
- Pain control is a critical component of shingles management:
Adjunctive Therapies
- Corticosteroids may provide modest benefits in reducing acute pain but do not significantly impact the development of postherpetic neuralgia 8
- Topical acyclovir is substantially less effective than oral therapy and is not recommended 2
Patient Education
- Patients should be advised that lesions are contagious to individuals who have not had chickenpox and should avoid contact with susceptible individuals until lesions have crusted 6
- Patients should be informed about the possibility of postherpetic neuralgia as a complication 4
Common Pitfalls to Avoid
- Inadequate dosing or duration of therapy may lead to treatment failure and increased risk of complications 2
- Failing to recognize and appropriately manage herpes zoster in immunocompromised patients, who require more aggressive therapy 2
- Using topical antiviral medications instead of systemic therapy 2
Follow-up Recommendations
- Monitor for complete resolution of lesions; treatment may need to be extended if healing is incomplete after the initial course 2
- Early referral to pain management specialists should be considered for patients with severe or persistent pain 7
- Patients with ocular involvement (herpes zoster ophthalmicus) should be referred to an ophthalmologist to prevent rare but serious complications 4