Body & HealthHow it works
Coughing? No help needed. Silent? Act right now.
If someone can still cough or speak, encourage coughing – don't slap their back. If nothing works anymore: 5 firm blows between the shoulder blades, then 5 abdominal thrusts (Heimlich manoeuvre), alternating until the object comes out. If they lose consciousness: call 112 and start chest compressions. This is how the Red Cross and rescue services teach it.
Useful: After a Heimlich manoeuvre the person should see a doctor – internal injuries are possible.
Source: en.wikipedia.org