“…24,26 It has also been suggested that the trauma itself, or the bystander effect, may cause wart clearance in previously sensitized individuals. 17 Intralesional immunotherapy has been shown to be associated with release of different cytokines such as IL-2, IL-4, IL-5, IL-8, INF-c and TNF-a that stimulate a strong immune response against HPV. 21,26 Intralesional immunotherapy is usually associated with mild insignificant side effects such as flu like symptoms, edema, erythema, itching and pain at the site of injection.…”