Cryosurgery

Liquid nitrogen (LN) is nitrogen in a liquid state at an extremely low temperature  Its boiling point is -196°C.

Liquid nitrogen is a cryogenic fluid that on contact with skin or other tissue leads to rapid freezing of tissue

With LN it is possible to treat viral warts, benign skin lesions (seborrheic keratosis, skin tags), precancerous skin lesions (solar keratosis) and many more.

Within a few hours after the freezing there is redness and swelling of the treated area. 

A vesicle or bullae may become apparent. 

A few days later a scab is formed which will fall off after a few more days (1-3 weeks after the treatment)

It is recommended to put an antibiotic cream on the treated area for 2 weeks to prevent secondary bacterial infection.