Management of Acute Shingles Pain

Pharmacological Interventions

The American College of Physicians recommends increasing gabapentin to therapeutic doses immediately, titrating to 1800-3600 mg/day in divided doses, as 400 mg/day is far below the effective range for neuropathic pain control 1, 2
A typical adult regimen titrates to 2400 mg per day in divided doses for neuropathic pain, with the American Academy of Neurology suggesting this dose 1
The American Society of Regional Anesthesia and Pain Medicine recommends topical lidocaine 5% patches, which provide excellent efficacy (NNT = 2) with minimal systemic absorption, and can be worn 12-24 hours on affected areas 2, 3
The American Academy of Neurology suggests capsaicin 8% patch can provide relief for at least 12 weeks, with application of 4% lidocaine for 60 minutes before capsaicin to minimize burning/erythema 1, 2
The American College of Physicians recommends nortriptyline as a second-line option, with excellent efficacy (NNT = 2.64), starting 10-25 mg at bedtime, and increasing every 3-7 days to 25-100 mg at bedtime 2, 4
The American Academy of Neurology suggests pregabalin 150-600 mg/day in two divided doses (NNT = 4.93) as a second-line option 1, 2

The American Society of Regional Anesthesia and Pain Medicine recommends monitoring for gabapentin side effects, including somnolence, dizziness, and ataxia, which are common but usually tolerable 1, 2
The American College of Physicians suggests that early aggressive treatment is critical, as the probability of preventing chronic postherpetic neuralgia correlates with rapid pain control 4

The American Academy of Neurology recommends combination therapy, such as gabapentin + nortriptyline or morphine + gabapentin, which may be more effective when single agents fail, allowing lower doses of each medication 2