Cryotherapy performed by our Doctors is a very safe treatment. Most side effects are minimal and temporary. These include redness, swelling and the possibility of slight oozing or a small blister formation. Less common side effects, considered to be rare, may include scarring, pigment changes to the skin treated, or loss of sensation to that part of the skin. In the vast majority of cases, when performed correctly, cryotherapy is a safe and effective treatment for the removal of specific benign skin lesions.