Salicylic acid is among the most effective topical treatments for warts, but recurrence and complete removal is not possible. Curettage is another good treatment procedure for wart removal, wherein the wart is scraped off using a tool or knife. Freezing (or cryotherapy) is also an effective treatment for warts. Laser (like CO2 laser) wart removal is one of the strongest treatments for warts. Radiofrequency machine Injection for which acts as immunotherapy