Cryotherapy, also known as Cryosurgery is the application of extreme cold to treat or destroy keloids. In Cryotherapy treatment utilizes liquid nitrogen to induce precise frostbite inside a keloid lesion. About 80% of the air we breathe is made of nitrogen, an inert gas that does not react with other chemical elements. Under extreme pressure, gases transform shape and become liquid; upon evaporation, liquid nitrogen produces extreme cold, -196 Celsius (-320 Fahrenheit).

Cryotherapy is the most effective, the most economical and the safest method of treating bulky keloids. See "Cryotherapy in the treatment of keloids.
Like most other medical procedures, the success of this treatment is purely operator dependent. The expertise of physicians using this method is the most critical factor in achieving desired results from cryotherapy

A common mistake in applying cryotherapy to a keloid is assuming that one can simply spray liquid nitrogen on the keloid by using a liquid nitrogen spray gun. This method of cryotherapy is highly ineffective. Although using a spray gun application may cause the surface of a keloid to appear frozen, quite often, the deep tissue remains untreated. As a result, the treatment does not achieve desired results and also causes the patient pain and discomfort. Worse yet, the treating physician concludes that the cryotherapy treatment was ineffective.

Having treated over 1,000 keloid patients - mostly with cryotherapy - Dr. Tirgan has developed a unique method of applying cryotherapy, which allows for successful removal of most bulky keloid lesions. For instance, nearly all ear keloids can be successfully removed, with quite a low recurrence, when cryotherapy is applied correctly. Bulky keloids that are located elsewhere on the body can also be successfully removed with proper cryotherapy.