United Medical Partners AG

Freiburgstrasse 453

CH - 3018 Bern


opening hours

08.00 - 12.00 h

13.00 - 17.00 h


Tel. +41 31 348 46 20

Fax +41 31 348 46 23



Note: Please fill out the fields marked with an asterisk.


Does the skin need any preparation prior to start a treatment?

There is no skin preparation at all.


When removing big warts, should they be cut before?

The upper part can be cut in order to save gas.


How many treatments are necessary to be successful?

In general there one treatment is enough. However, plantar warts are sometimes hard to remove so a second or third treatment could be necessary.


What is the time frame for a second treatment?

A second treatment can be done immediately.


How long does it take until a result can be seen?

Necrosis is formed within a few days and peels off. The re-pigmentation can take from a few weeks to a few months, depending on the type and brightness of the skin. Dark skin takes longer (important to protect). To be sure that a plantar wart has successfully been removed it is recommended to check again after 3 months.


What is important for a successful treatment?

The recommended application time must be kept. The gas must always be brought directly onto the skin. There must be a direct contact between liquid and skin.


Are there any risks?

Skin is different from person to person and therefore the reaction can also differ. Blisters are possible but will disappear after a while. On very sensitive skin a scar formation can not be excluded.


Can these risks be avoided?

The right application time leads to more safety but patients must be informed about eventual risks prior to start the treatment. There is no warranty for a 100% success and some risks always remain. But nitrous oxide is less harmful than nitrogen.


Is there something special to observe after a treatment?

All treated areas should be protected against direct sun exposure otherwise the re-pigmentation could fail. Every treated area should be seen as a focus of infection and treated accordingly until the healing process has terminated.


Are these cartridges dangerous?

Yes and no. They are under pressure and therefore there is an inbuilt valve to assure that cartridges can be removed and attached without risk. However, to avoid the risk of getting cold fingers gloves should always be used. A cartridge should always be emptied prior to dispose of. Nitrous oxide is not an explosive gas but would increase a burning fire. Therefore it is considered as dangerous good for air transport. Don’t take cartridges onto the aircraft; it is strictly forbidden.


How long does a cartridge last or how many treatments are possible?

A cartridge has a running time of 300 seconds. You may divide this number by the duration of your interventions. A refill is not possible.


How to dispose of cartridges?

Empty cartridges should be brought to the scrap metal disposal if possible.