Cryotherapy is a relatively low-risk procedure. CryoPen delivers N20 directly to the lesion, and not the healthy surrounding tissue. CryoPen is both CE and FDA registered.

The penetration rate of freezing with the CryoPen is approximately 1mm per 5 seconds, with a maximum freezing depth of 3 to 6mm depending on the used applicator. The duration of the treatment time will depend on the surface area and the thickness of the tissue being treated. Upon the clinical evaluation of the thickness of the lesion, the operator will choose an application time from 1 to 30 seconds.

There will be a pain sensation similar to a ballpoint pen being pushed onto the skin when the nitrous oxide reaches the bottom of the lesion. There might be a little residual stinging for a few minutes after treatment. Occasionally a blister might form and persist for a few hours.

A follow up visit is recommended after 2 to 4 weeks to confirm that all pathological tissue has disappeared or if a follow up treatment is necessary.

Repeated short freezing cycles of 3 to 6 seconds at two-week intervals are recommended if you have a darker skin type.

CryoPen Therapy is relatively low risk. There are a few side effects that may occur as a result of treatment, including:

• Pigmentary changes (hypopigmentation and hyperpigmentation)
• Nerve damage (particularly in areas where nerves lie close to the surface of the skin, on fingers, wrist, area behind the ear) Shards of frozen ice (minor
  shards of frozen ice may blow out,that will thaw on contact with healthy skin)
• Hair follicle damage and permanent alopecia (especially when treating lesions on
  sites with coarse terminal hair)

Discuss any concerns with your clinician

The cost of treatment will be discussed during the consultation – depending on the lesion. Make an appointment with your clinician to discuss costs and to assess your lesion.