The Myth vs. The Medical Reality
For many years, it was a common reflex to pat someone on the back during a coughing fit. However, medical professionals now advise against this casual practice. The core misunderstanding lies in confusing a simple, productive cough with a complete airway obstruction, or choking.
A casual pat, or even a forceful one, is not an effective way to clear a normal cough. If someone is coughing, their body is already actively trying to expel an irritant or clear their airways. Interfering with this natural process can disrupt their breathing rhythm and cause more irritation. In a worst-case scenario, if there is a partial obstruction, an inappropriate back slap could dislodge the item and cause it to become fully stuck, worsening a life-threatening situation. The proper approach is to understand the context and apply the right medical technique for the right condition.
Understanding the Difference Between a Cough and Choking
It is vital to distinguish between a person who is coughing and one who is choking. A person who is coughing can still make noise and move air, even if it is with difficulty. A person who is genuinely choking, on the other hand, cannot make any sound, will clutch their throat, and may become visibly distressed or turn blue. Their airway is completely blocked, and they cannot breathe.
- If the person can cough, speak, or breathe: Encourage them to keep coughing. This is their body's way of clearing the airway. Do not interfere with back pats.
- If the person cannot cough, speak, or breathe: This is a medical emergency. Do not use casual pats. You must perform the Heimlich maneuver or other life-saving techniques as trained.
The Role of Chest Physiotherapy (CPT)
When people think of patting the back for a cough, they are likely thinking of a medical procedure known as chest physiotherapy (CPT), also referred to as chest percussion. This is a very different procedure from a casual back pat. CPT is a specialized technique performed by trained respiratory therapists or caregivers to help clear thick, sticky mucus from the lungs of individuals with chronic conditions like cystic fibrosis, pneumonia, or COPD.
CPT Techniques and When They Are Used
CPT involves a rhythmic, cupped-hand clapping or percussion on specific areas of the chest and back to loosen mucus. It is always combined with postural drainage, where the patient is positioned in different ways to allow gravity to assist in draining the mucus toward the mouth, where it can be coughed out or suctioned. This is not a treatment for an average cold or flu cough but is reserved for specific medical needs under a doctor's recommendation.
- Percussion is done with a cupped hand, not a flat one, to create a hollow sound and minimize pain.
- It is performed in a rhythmic manner over a specific area of the lungs.
- The patient is placed in various positions, sometimes with their head lowered, to drain different lung segments.
- It is often followed by a controlled coughing technique or huffing.
When Patting the Back is Harmful
Improperly patting or slapping someone's back can have negative consequences. For someone with a dry, irritated cough, it is at best annoying and at worst, could increase throat irritation. For those with a severe asthma flare-up, it could increase their anxiety and worsen their breathing. The most dangerous outcome, however, is for someone who is choking. A forceful back blow could turn a partial airway obstruction into a complete one, making it impossible for the person to breathe.
Safe and Effective Alternatives for Cough Relief
Instead of patting, there are many proven and safe ways to help someone experiencing a non-choking cough:
- Hydration: Encourage drinking warm fluids like tea, broth, or just water. This helps thin mucus and soothe the throat. Adding honey to warm water can also be effective for adults and children over one year old.
- Steam and Humidifiers: A steamy shower or a cool-mist humidifier can add moisture to the air, which soothes irritated airways and helps loosen congestion.
- Elevation: For a nighttime cough, elevating the head with extra pillows can help with postnasal drip and acid reflux.
- Controlled Coughing (Huffing): A respiratory therapist can teach a 'huff' technique, where a person breathes in deeply and then forces the air out in two or three short huffs. This is more effective at moving mucus than aggressive coughing.
How to Respond to Choking: A First Aid Guide
It is crucial to know the correct procedure for choking. If you suspect a person's airway is fully blocked:
- If they can't breathe, cough, or speak, ask if they are choking. If they nod, proceed.
- Give five sharp blows with the heel of your hand between their shoulder blades.
- Follow with five abdominal thrusts (the Heimlich maneuver). Stand behind the person, wrap your arms around their abdomen, and place a clenched fist just above their navel. Grasp your fist with your other hand and thrust inward and upward.
- Alternate between five back blows and five abdominal thrusts until the object is expelled or the person becomes unresponsive.
- For a comprehensive guide on this life-saving technique, consult the American Heart Association or the Red Cross. You can also find guidance on safe ways to provide first aid for choking from authoritative sources.
Comparison: Casual Back Patting vs. Clinical Chest Physiotherapy
Feature | Casual Back Patting (for general cough) | Clinical Chest Physiotherapy (CPT) | Emergency First Aid (for choking) |
---|---|---|---|
Purpose | Ineffective and potentially harmful. Based on misinformation. | Medically proven technique to loosen thick mucus from lungs. | Dislodge a foreign object that is causing a complete airway obstruction. |
Recipient | Anyone coughing, regardless of cause. | Patients with specific respiratory conditions (e.g., COPD, cystic fibrosis). | A person who cannot breathe, cough, or speak due to an obstruction. |
Technique | Random or forceful slapping, often with a flat hand. | Rhythmic, cupped-hand percussion on specific lung segments, combined with postural drainage. | Five forceful back blows followed by five abdominal thrusts (Heimlich). |
Performer | Untrained bystander. | Trained respiratory therapist or designated caregiver. | Trained individual; anyone in an emergency situation. |
Risk Level | High for choking; low efficacy for cough. | Low when performed by a professional. | Low when performed correctly in an emergency situation. |
Conclusion
While the impulse to pat someone on the back during a coughing fit comes from a desire to help, it is a misguided practice rooted in myth. For a general cough, it is more beneficial to offer warm fluids and a humidifier, while for a medical condition involving mucus, a trained professional should use chest physiotherapy. The most critical takeaway is to differentiate between a standard cough and a choking emergency. If a person can still cough, let them. If they cannot breathe, initiate the correct first aid procedure immediately. Never casually pat the back of someone who is choking.