Clinical Efficacy and Safety of Tender Point Infiltration (TPI) for Acute and Subacute Zoster Associated Pain

Patients will receive daily 300 mg pregabalin in divided doses (150 mg/12 hours). Once the patient report mild pain (VAS ≤ 3), the trial for reducing the pregabalin dose will be done. Nonsteroidal anti-inflammatory drug celecoxib (200 mg on request, up to two times daily)27 and tramadol (100 mg on request, up to 400mg daily) will be available for as-needed analgesia.

Lidocaine mixed with diprospan injected into tender points.