Cryotherapy with liquid nitrogen is performed by a specialist in a clinical setting. First, the area of exposure will be disinfected, and then treated with an active substance - nitrogen. During the procedure, unpleasant sensations may arise, and it may take several weeks for the complete restoration of healthy tissues.
Liquid nitrogen is a transparent liquid, which is one of the states of nitrogen. And although his temperature is quite low, the cryotherapy procedure is most often performed without anesthesia. First, the specialist will treat the affected area with alcohol, which will decontaminate the area and avoid infection. Then, using a cotton swab, liquid nitrogen treatment will be performed. Usually a tampon is used if the area is small. If the zone is quite extensive, or long-term exposure is required, then special devices are used, such as a cryoapplicator or a cryofener. The latter atomizes the vaporized nitrogen and allows for the treatment of certain skin conditions. And with the help of the applicator, you can perform cryomassage or remove scar formations. The exposure time usually ranges from 10 to 60 seconds. Longer exposure to nitrogen increases the likelihood of serious tissue damage.
Exposure to liquid nitrogen leads to certain changes in tissues, and this will be noticeable. At first, the area of influence will turn pale, which indicates cell death. At this point, you may feel a burning sensation, coldness, or even pain. Most often, the specialist achieves the ingress of a small amount of nitrogen on a part of healthy tissues, this allows you to avoid relapses and remove the pathological neoplasm completely. And therefore, a small area around the affected area turns pale. About a minute after the end of the procedure, redness will appear at the site of nitrogen exposure, this is a completely normal reaction. After a few hours, a so-called epidermal bladder is formed, filled with hemorrhagic or serous fluid.
Usually the bubble lasts no longer than a week, and the amount of liquid in it gradually decreases. Then a dense crust forms in place of the bubble. It is rejected after about two weeks, and in its place remains an inconspicuous light pink spot. If the bladder is too large and interferes with daily duties, the specialist will open it and treat it with an antiseptic composition. A bandage is required after opening. If one session of cryotherapy with liquid nitrogen did not solve the problem, then the procedure will need to be repeated. In total, 3-7 sessions can be assigned. But the procedures should be carried out at a certain interval, which can be from 3 to 5 days.