The victim grasps his own throat, who is usually unable to speak, with breathing difficulty and coughing.
The rescuer stands behind the victim, wrapping his arms around the victim's waist; making a fist with one hand and placing the thumb side of the fist against the abdomen just above the navel, and grasps the fist with the other hand and presses in with firm, quick, upward thrusts.
The rescuer repeats the firm, quick and upward thrusts until the victim ejects the foreign body or loses consciousness.
Keeps the victim lying down on the ground, the rescuer straddles the victim’s, hips，with the heel of one hand positioned against the victim’s upper abdomen, the other hand covers the fist and press continuously 5 times downward and upward.
Move to the side of the victim's head to check if there is foreign body or not, expel it out if there is, and give two breaths if without.If the chest does not expand when blowing, repeat step 1 and 2 until the air is forced in.Check breathing and pulse, perform CPR as necessary.