Yes, it is normal for the pain to persist even after taking medication for shingles. This is because the antiviral medication is meant to reduce the severity and duration of the symptoms, but it does not directly treat the pain. If the pain continues after the shingles rash has healed, it is known as postherpetic neuralgia. In the meantime, you can try using over-the-counter pain relievers like Tylenol or Advil to help with the discomfort. Keeping the affected area moisturized with unscented lotion can also promote healing. If the pain persists after the rash is gone, it is advisable to consult a doctor for further evaluation and potential treatment options.