Method and precautions for liquid nitrogen freezing treatment of skin diseases


1. Definition: Cryotherapy is a treatment that uses cryogenic substances to produce low temperatures for the treatment of certain diseases.

2, indications: common warts, toenails, flat warts, condyloma acuminata, infectious soft palate, corns, sputum, skin angle, capillary hemangioma, simple hemangioma, keratomas, spider mites, soft fibroids, nerve fibers Tumor, keloid, sweat tube tumor, sebaceous gland adenoma, sebaceous gland adenoma, basal cell carcinoma, squamous cell carcinoma, melanoma, epidermal carcinoma in situ, leukoplakia, eczema-like cancer (paget's disease), senile keratosis .

3, after freezing, you can see the skin hardened, the surface is white, usually melted within 2 minutes. 10 to 15 minutes after freezing, due to the reflexive expansion of blood vessels, burning pain occurs, and this pain can quickly disappear. After a few hours of freezing, local tissue showed edema. (The frozen area is large, and blisters and hemorrhagic bullae may appear in deep frozen.) After 1~3 weeks, the scars gradually fall off, leaving temporary hypopigmentation or pigmentation spots. No or only minor scars after healing. A second cryotherapy is usually performed after 2 weeks of the first freezing.

Precautions for cryotherapy of liquid nitrogen:

1. Liquid nitrogen cryotherapy is contraindicated in severe cold urticaria, cryoglobulinemia, Raynaud's disease, and a small number of elderly, frail, and intolerant to cryotherapy. Diabetes patients with lower extremity blood circulation disorders, such as cryotherapy in the lower leg and foot, often form chronic ulcers that have not healed for a long time, should be used with caution.

2. After cryotherapy, the wound should be kept clean and dry. Try not to touch the water within one week. Apply 75% alcohol, iodophor or antibiotic ointment daily to prevent infection. Let the knots fall off naturally, and do not scratch, tear, or scrub with your hands.


3. Pain occurs in the local tissue after treatment, and it can disappear by itself within 1-2 days. If necessary, you can take painkillers.

4. When the local tissue appears to be swollen, blisters, and bullae after treatment, the blister fluid can be withdrawn or worn through a sterile syringe, but do not tear off the blister wall. Tissue loose areas such as around the eyelids or soft skin are more pronounced.

5. If a treatment is not cured and repeated treatment is required, the suede should be allowed to fall off before proceeding to the next time.

6. After the general cryotherapy, the center of the lesion is pigmentation, and the surrounding is pigmentation. In particular, after the face is treated with cryotherapy, attention should be paid to sunscreen and sunscreen to avoid aggravating local pigmentation.

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Sales Manager: Amanda Hou


Phone/WhatsApp: +8618937399428

Sales Manager: Andy Du


Phone/WhatsApp: +8617656208428

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