By puncturing the verrucae with an empty, sterile needle many times, the viral particles are directly exposed to the fatty tissue beneath the skin, where the body is rich in immune regulators. Here the immune system can recognize and destroy the virus.
Simply, using a sterile needle, we push the wart tissue into the body, where the immune system can reach and destroy it.
As this immune response is often systemic, treating only one, or a small cluster, of verrucae is required. The procedure is carried out painlessly under local anesthetic, and only mild soreness the following day has been reported by a few patients. However, most patients feel no discomfort at all following treatment.