One of the primary reasons individuals experience coughing from e-cigarettes could be related to the chemical composition within the e-liquid. Many e-liquids contain propylene glycol and vegetable glycerin, both of which can irritate the respiratory system.
Chemical Irritants in E-Liquids
Propylene glycol is a commonly used ingredient in e-liquids due to its ability to produce vapor. However, it has hygroscopic properties, meaning it can draw moisture out from tissues in the airway, leading to dry throat and coughing. Similarly, vegetable glycerin, while producing thicker vapor, can also contribute to throat irritation.
Nicotine and Exposure
Another factor contributing to coughing is the nicotine concentration in e-liquids. Nicotine is a stimulant and can cause throat constriction, leading to cough reflexes. Users switching from traditional cigarettes to e-cigarettes might also experience coughing as their bodies adjust to the change in nicotine delivery methods.

Flavoring Agents
Flavorings in e-cigarettes can also be culprits of respiratory irritation. Some users may have allergic reactions to certain flavors, which can result in coughing or throat discomfort. It’s essential for vapers to identify if a specific flavor is causing irritation and consider switching to a flavor that suits their palate better.
Understanding Vapor Production
The amount of vapor produced can influence coughing behavior. Cloud chasers, who prefer devices that produce large amounts of vapor, often face increased coughing due to the sheer volume of vapor inhaled. This can irritate the lungs and lead to coughing fits.
Adjusting Usage Habits
For regular vapers experiencing persistent coughing, several adjustments can be made. Reducing the nicotine level in e-liquids or experimenting with different ratios of propylene glycol and vegetable glycerin might mitigate irritation. In addition, ensuring proper hydration while vaping can alleviate dryness in the throat.
It’s important to remember that while e-cigarettes are marketed as safer alternatives, they are not completely free of side effects.
FAQs
Q1: Can switching e-liquid brands reduce coughing?
A: Switching to an e-liquid with a different PG/VG ratio or lower nicotine content may help reduce coughing.
Q2: Are there long-term effects of coughing from e-cigarettes?
A: Persistent coughing may indicate irritation or sensitivity, which could lead to long-term respiratory issues. Consultation with healthcare professionals is advisable.

Q3: Can all flavors cause coughing or is it brand specific?
A: Certain flavors might cause more irritation due to specific ingredients; experimenting with various flavors can help identify irritants.