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What Is

Cryotherapy also know as liquid nitrogen is a treatment option for treating verrucae’s/warts and has been around for many years. Cryotherapy involves destroying the viral cells by subduing the virus to very cold temperatures destroying them.

The area is frozen creating an ice ball causing destruction to the viral cells and surrounding cells. This in turn causes causes rupture to the cells releasing the virus into the blood stream where they are removed from the body by the immune system.

What Does Cryosurgery Involve?

  1. The skin is prepared removing any callus and dead skin surrounding the verruca/wart and then sterilised with skin disinfectant.
  2. The liquid nitrogen is sprayed for couple minutes with intervals of rest and re-application
  3. The area is dressed and the podiatrist will give you the appropriate aftercare advice necessary.

Will It Be Painful?

During the treatment very little pain is experienced and usually feels very cold with a little stinging sensation which would ease off within a few minutes. After the treatment the area Shula blister within 24-48 hours but this can be delayed. If discomfort is felt during this time it is advised to take painkillers such as paracetamol which will help to eases the discomfort.

On some occasions the lesion can bleed under the skin forming a blood blister. This may cause concern but it nothing to worry about as this can sometimes be expected. The area needs to blister to eradicate the verrucae/ wart. If you have any concerns then the podiatrist will provide a 24 hour emergency number where you can get any questions answered.

Follow Up & Redressing?

The podiatrist will advise on appropriate dressing to use in between appointments.
The podiatrist will assess the verrucae/wart 7-10 days post treatment. If necessary the podiatrist will freeze the area again is appropriate. In some cases, some verruca’s/warts can be resilient so may require multiple treatments but the podiatrist will discus this with you at your appointment.

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