It is very common to experience post-herpetic neuralgia (nerve pain) after shingles. Gabamine is highly effective but typically takes two to four weeks of consistent use to show significant results; five days is simply too early. For more immediate relief while gabapentin builds up in your system, consult your doctor about adding: 1. Topical Lidocaine patches or gels to temporarily numb the painful area. 2. Capsaicin cream to help desensitise the nerve endings. 3. Temporary prescription painkillers if the discomfort is severe. Please continue taking your prescribed medication, as its benefits will increase over time, and discuss these fast-acting topical options with your physician.