How long does it last?
The treated lesions should completely heal within 4 to 6 weeks and scabs formed around the lesion will shed after a week to 10 days. Lesions on the leg take the longest time to heal. Some people may develop a temporary change in skin colour (pigmentation) or slight scarring in the treated area - pigment change is more common in darker skin types and may not be temporary.
Hair follicles can be damaged by cryotherapy so if the lesion is within an area of hair, such as on the scalp, then a small amount of hair loss may occur.
Rarely there is potential for superficial nerve damage, depending on the location of the treated lesion. This may cause a temporary feeling of numbness or tingling in the area which may last for a few months.
If a treated lesion does not heal as expected, or there is pain or redness after a few days, then you should contact the practitioner again as these could be signs of an infection.
Possible side effects
CryoPen therapy has been established to be very safe. However, be prepared for the following:
• Slight discomfort during the procedure - As with most lesion treatments, you'll feel some slight discomfort while CryoPen is being applied. The discomfort usually feels like the an ice cube against your skin. However, unless you have a problem such as a skin allergy, it will only last a few seconds. Generally, no topical anaesthesia (or numbing cream) is required before treatment.
• Mild stinging following the procedure - Immediately after the procedure, you will likely experience mild to medium stinging that may last for several minutes to an hour. Again, don't be too worried about the stinging as it goes away naturally.
• Sores and blisters - Rarely, the skin where the lesion was treated, usually becomes sore, red, weepy and blistered. It may sting for an hour or so after treatment. Often a scab will form in the following days. This is common where deep freezing is used and may cause pain immediately after the treatment.
The practitioner may recommend topical or oral pain killers to relieve discomfort if required. It is important not to scratch or pick at a scab as this can lead to scarring.