Verrucae are due to a virus called Human Papilloma Virus.
Topical over the counter preparations containing salicylic acid are effective, but require time and discipline to apply daily. Cryotherapy offers approximately a 85% success rate. Cryotherapy creates an injury which increases the rate at which your body gets rid of the virus. Often multiple sessions may be required. Cryotherapy is usually covered under Quinn, Aviva and VHI healthcare policies.