During treatment cryotherapy has an extremely cold, sharp, stinging sensation. For most this will settle very quickly but for some it may persist for a few hours.
The treated area can sometimes feel mildly irritated or itchy after this.
Headaches can occur following cryotherapy to the scalp or forehead. The headache usually responds well to simple pain killers and rarely lasts more than a few hours.
You may have redness and swelling
Like a burn, the treated area turns red in the minutes after treatment. This redness can last for 1 to 2 weeks. There may also be swelling and/or puffiness of the treated area. This is likely to settle within a few days.