Place without forcing the tip best suited to the type and location of the sting or bite, then arm the pump by pulling the plunger fully (halfway for a child). Place the Aspivenin pump with its tip on the wound, holding it with one hand. Push the plunger all the way in and at the end of the stroke you will feel a powerful suction. You then let the aspivenin pump act for 20 seconds to 3 minutes (adjust the suction time according to the stings or bites, refer to the instructions for use). This period can be extended or renewed without inconvenience, especially in serious cases. Then lift the plunger button with the tip of your thumb to remove the Aspivenin pump. We advise you to handle your pump before using it by consulting the instructions. We also advise you to keep it close at hand if you find yourself in a risky environment.