The most common causes of persistent dry cough are: 

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1. Allergy 

Allergy to dust, domestic animal skin or flower pollen causes throat irritation, causing coughing until the cause of respiratory allergy is identified and eliminated. 

2. Gastroesophageal reflux 

Gastroesophageal reflux can also cause dry cough after ingestion of spicy or very acidic foods. 

3. Heart problems 

Heart problems such as heart failure, which causes fluid buildup in the lungs, can also cause coughing. 

4. Cigarette and pollution 

Cigarette use and smoking and pollution cause irritation in the throat, and may also stimulate the cough reflex. 

5. Asthma 

Asthma causes symptoms such as shortness of breath, wheezing or noise when breathing and coughing, especially at night. 

It is important that the person who has dry and persistent cough drink plenty of water, to keep the throat hydrated, and avoid dry environments. Dry and persistent cough can also be caused less often by side effects of medications, psychological conditions, stress and anxiety, as some people have increased respiratory rate when they are in situations of stress or anxiety, which stimulates cough. 

The person suffering from persistent dry cough should make an appointment with a general practitioner or pediatrician so that he can request tests in order to identify the cause of the cough and indicate the best treatment. 

How to treat persistent cough 

Treatment for persistent dry cough should be directed to address its cause. In the case of dry cough of allergic cause, in addition to the use of medications prescribed by the doctor, it is important to: Drink at least 1.5 liters of water per day, because water helps keep the airways hydrated and decreases throat irritation; 

Take 1 tablespoon of carrot syrup or oregano about 3 times a day. These syrups have antitussiveproperties, reducing cough ings.

Drink 1 cup of mint tea, about 3 times a day. Mint has tranquilizer, antitussive,  mucolytic,expectorant and decongestant action, helping to relieve cough.

To make the tea just add 1 teaspoon of dried or fresh mint leaves in a cup of boiling water and let stand for 5 minutes, strain and drink below

Take persistent dry cough medicine under medical advice such as Vibral, Notuss,  Antuss  or  Hytos  Plus, for example:  

Avoid dust indoors, as contact with animals and cigarette smoke can be the cause of persistent dry cough. 

Cases of persistent dry cough for more than 1 week deserve more attention, especially if the individual has asthma, bronchitis, rinitis or any other chronic respiratory disease. It can mean a worsening of the condition and the need to take antihistamine or corticosteroid medications. 


  1. Good post, there’s a type of Asthma that’s specifically the Coughing Variant. Also, you’re right asthmatic people tens to be triggeres by strong smells. I have tachycardia due to anciety attacks too. Or even just like that at resting state. Which feels weird because your heart rate could be as high as 140 but it’s not necessarily fatal. 😅

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