Sometimes all it takes is one night with the air conditioning a little too strong to wake up with a scratchy throat. Over time, a dry cough appears, often without other symptoms, and becomes particularly bothersome when speaking or going to bed.
In this situation, many are looking for a simple solution to prepare with what they already have in their kitchen. Behind this recipe which seems surprising hides an explanation which deserves to be known before trying it.
Why air conditioning can cause a dry cough
Contrary to popular belief, it is not air conditioning itself that makes you sick. Most often, it is the cold air and especially the dry air that it diffuses which can irritate the respiratory tract.
When air humidity decreases, the mucous membranes of the nose and throat dry out more quickly. Result: a feeling of irritated throat, a desire to cough and sometimes a more hoarse voice. People suffering from allergies, asthma or already having sensitive bronchial tubes are generally the first to be affected.
Another factor comes into play: air conditioning filters. When they are poorly maintained, they can accumulate dust, pollen or mold which increases respiratory irritation.
It is precisely in this context that grandmother’s remedies are experiencing a resurgence in popularity. Simple, inexpensive and easy to prepare, they appeal to many people looking for quick relief.
Coffee and lemon: a divisive home remedy
The mixture is as simple as it is unexpected: black coffee to which we add a few drops or the juice of half a lemon.
Its fans believe that coffee brings a feeling of stimulation while lemon provides a feeling of freshness in the throat. Some also explain that caffeine could contribute to a slight dilation of the bronchi, a known but limited effect.
On the other hand, no solid scientific study demonstrates that this preparation helps stop a dry cough caused by air conditioning. Its effectiveness is essentially based on personal testimonies.
It should also be borne in mind that this drink is not suitable for everyone. Coffee can increase heartburn in some people, while lemon, which is very acidic, can further irritate an already sensitized throat.
In other words, although some people say they feel better after drinking this mixture, there is currently nothing to confirm that it is an effective treatment for coughs.
Actions that really relieve an irritated throat
When air conditioning is the culprit for a dry cough, a few simple habits often produce better results.
Drinking water regularly helps maintain good hydration of the mucous membranes. A hot drink, such as herbal tea or hot water with a little honey – in adults and children over one year old – can also provide temporary relief.
It is also recommended to set the air conditioning between 24 and 26°C in order to avoid too large a temperature difference with the outside. Cleaning the filters according to the manufacturer’s recommendations also helps limit the presence of dust and allergens in the air.
Finally, if the cough persists for several days, is accompanied by fever, shortness of breath or chest pain, it is best to consult a health professional to find the cause.
The coffee and lemon mixture therefore remains a popular homemade recipe which arouses a lot of curiosity. Nothing stops you from trying it if you tolerate it well, but it does not replace the actions that really help protect the respiratory tract when the air conditioning dries the air.
1. Why can air conditioning cause a dry cough?
Air conditioning dries the ambient air, which can irritate the mucous membranes of the throat and respiratory tract. This irritation sometimes leads to a dry cough, especially if the temperature is set too low or if the filters are poorly maintained.
2. Is the coffee and lemon mixture really effective against dry cough?
No scientific evidence confirms that the coffee and lemon mixture helps stop a dry cough. Some people report feeling relief, but its effectiveness is based primarily on testimonials and not medical studies.
3. Are coffee and lemon dangerous?
Yes, in some cases. Coffee may promote heartburn or increase nervousness in sensitive people. Lemon, because of its acidity, can also increase the irritation of an already sore throat.
4. How to avoid an air conditioning-related cough?
It is advisable to set the air conditioning between 24 and 26°C, to clean the filters regularly, to ventilate the home every day and to hydrate well to prevent the mucous membranes from drying out.
5. When should you see a doctor for a dry cough?
If the cough lasts more than a few days, worsens, is accompanied by fever, difficulty breathing, chest pain or other unusual symptoms, it is recommended to consult a healthcare professional to identify the cause.
