A plasma-generation device for applying plasma to a human body, having a reservoir containing a gas, a plasma zone in fluid connection with the reservoir, and means for generating a plasma by electrical discharge in the plasma zone. The gas has a composition of 92% to 99.9% Argon and 0.1% to 8% Krypton； or 95% to 99.5% Argon and 0.5% to 5% Hydrogen； or 92% to 99.5% Argon and 0.5% to 8% Nitrous Oxide.
