Usage Protocol

The Dermafreeze procedure only takes a few minutes.
See below for step-by-step instructions on how to use it.

Assembling the Tube

To assemble the tube, remove the seal (only on the Dermafreeze 210 version) and insert the extension tube into the actuator, securing it securely.

1. Lesion AnalysisATENTION!
   THE LESION ANALYSIS MUST ALWAYS BE PERFORMED BY A CERTIFIED HEALTH PROFESSIONAL.The first step in the cryosurgery process involves analyzing the lesion. Adequate analysis is essential – as it will determine the type of application, number of jets and sessions to be used.
   In general, the lesions most commonly treated with Dermafreeze and other cryosurgery techniques are: solar melanosis, warts, keratosis, genital lesions (including warts and lesions caused by HPV) and plantar warts.
   Regions with thicker skin, such as the sole of the foot or palm of the hand, for example, may have a different protocol compared to regions with thinner and more sensitive skin, such as the neck and back of the hands – in relation to the amount of cryogen to be used, bubbling time and even the number of sessions.A primeira etapa do processo da criocirurgia está ligada à análise da lesão.
   
2. Preparation and Asepsis
   Find a position where the patient is comfortable and where the lesion is horizontal. Depending on the location, the application may be performed with the patient sitting or lying down.
   For the procedure on the sole of the foot, the professional must position the patient in a comfortable and stable position, ensuring easy access to the treated area. The most common positions include the patient lying on their back, with their foot supported; sitting in a reclining chair, with their foot elevated; or, in some cases, on their stomach, if necessary. The choice depends on the type of procedure, the patient’s comfort and the ergonomics for the professional.
   For the application of DermaFreeze, asepsis should include hand hygiene or the use of disposable gloves and cleaning the area with water and mild soap. Then, apply an antiseptic with sterile gauze, allowing it to dry naturally before the procedure.
   
3. Selection and positioning of the applicator (cone)
   The applicator is used to limit the action of the cryogenic agent, ensuring that only the target area is treated.
   The cone should be used in a horizontal position, avoiding diagonal applications, so that the cryogen acts evenly on the lesion.
   Select the cone according to the size of the lesion, leaving a small space (approximately 1 mm) around the lesion.
   Position the cone around the lesion with light pressure, so that there is no leakage of the cryogenic agent, and also so that it does not cause discomfort to the patient (since the area may be sensitive due to the lesion).
   For lesions larger than the applicators, more than one procedure may be performed on the same lesion, to cover the entire area.
   
4. Jet Application
   The technique for applying the jets may vary according to the type and location of the lesion, as well as the number of sessions required to remove each lesion.
   With the applicator positioned over the lesion, insert the end of the extension tube against the inner wall of the cone, positioning it diagonally to avoid splashing.
   Gently pull the trigger, applying short jets on the inclined surface of the actuator, lasting approximately 1 second each. It will be possible to see the accumulation of the cryogenic agent in liquid form on the lower part of the applicator, while it bubbles over the lesion.
   For greater effectiveness of the procedure, it is important that the cryogen bubbles for approximately 45 seconds, in order to ensure that all the cells in the lesion reach a temperature of minus 20°C. Keep the cone in position until the bubbling process is complete. After bubbling, it will be possible to see the layer of ice over the lesion.
   
5. Post-Procedure
   After the procedure, wait for the lesion to thaw naturally.
   IMPORTANT: THE LESION DOES NOT DISAPPEAR IMMEDIATELY. IN GENERAL, IT TAKES BETWEEN 7 AND 14 DAYS FOR THE LESION TO FALL OFF NATURALLY.
   The appearance of the lesion after the procedure may vary depending on the type of lesion and region.
   Immediately after the procedure, the area may become whitish, followed by redness and slight swelling.
   Within 24 to 48 hours, a clear or reddish blister may appear, which develops into a scab in the following days. Within two to four weeks, the scab will come off, revealing renewed skin, which may have a temporary change in color.
   It is not necessary to apply a bandage over the treated lesion. Ointments or creams should only be used if recommended by a healthcare professional.
   
6. Return after the procedure
   In general, the follow-up visit is carried out within a period of 14 days. However, the interval may vary according to the protocol adopted by the professional.
   There are 3 possible scenarios when returning. If the lesion has disappeared after the first session, the procedure is complete and no additional sessions will be necessary. If the lesion has reduced in size (but has not disappeared completely), a new application of Dermafreeze should be performed to continue the treatment. If there is no change in the lesion, it is possible that too little product was applied to the lesion. In this case, the time of action of the cryogen (bubbling) should be reviewed.