Why does vaping make me cough?

Coughing while vaping is common and usually fixable. The most likely causes are wrong inhalation technique, nicotine too strong for you, PG sensitivity or simply being new to vaping. Around 22% of vapers report coughing in surveys, so you are not alone.

The six common causes

Wrong inhalation technique

Ex-smokers often inhale vape the same way they smoke. Vape needs a slower, gentler draw. Inhaling too fast or too deep is the single biggest cause of new-vaper cough.

Nicotine strength too high

Higher nicotine, especially freebase, gives a stronger throat hit that triggers coughing. 20mg salts and 12mg+ freebase regularly cause coughing in people who are not used to them.

PG sensitivity

About 8% of people are sensitive to propylene glycol to some degree, with about 1% reporting more serious reactions. PG dries the throat, which is the primary trigger.

Wattage too high

Running a device above the coil's recommended range produces hotter, harsher vapour. Common with sub-ohm tanks and DIY setups. Adjustable devices often default too high.

Strong flavours

Menthol, cinnamon, citrus and some dessert flavours irritate the throat more than mild flavours. Switching to a less intense flavour often solves it.

Quit cough (in new ex-smokers)

When you stop smoking, the tiny hairs (cilia) in your lungs recover and start clearing out trapped tar. The coughing is temporary, usually 1 to 4 weeks, and a sign your lungs are healing.

Working out which is yours

The pattern of when you cough usually gives it away.

Coughing the moment you inhale

Almost always technique or nicotine strength. Vapour hitting the throat too hard or too hot. Try slower draws or lower nicotine.

Coughing after exhale

More likely PG dryness or irritation building up. Switch to higher VG or stay better hydrated.

Persistent cough throughout the day

Could be PG sensitivity, or quit cough if you have just stopped smoking. Try a few days nicotine-free to test which.

Cough only with one specific flavour

Almost certainly a flavour or ingredient sensitivity. Switch flavours and the cough should stop.

Wet productive cough with brown mucus

Quit cough. Your lungs are clearing out tar from previous smoking. Drink water and wait it out.

The fixes that work

Try these in order. Most vaper's cough resolves with one or two changes.

Slow down your inhale
Take longer, gentler draws. Try counting to 3 or 4 during the puff rather than pulling hard for 1 to 2 seconds. This single change fixes about a third of cases.
Try mouth-to-lung (MTL) instead of direct-to-lung (DTL)
MTL means drawing vapour into your mouth first, then breathing it in. Closer to how you draw on a straw. Pod kits and disposables are usually MTL. Sub-ohm tanks are DTL and need a different technique.
Lower your nicotine strength
Going from 20mg to 10mg salts, or 12mg to 6mg freebase, can transform the experience. Less harsh throat hit, much less coughing.
Switch to nicotine salts if on freebase
Nic salts are formulated to be smoother on the throat at any given strength. If you find freebase too harsh, the same strength in salts is easier on the throat.
Try higher VG e-liquid
Move from 50/50 to 70/30 VG/PG. Smoother, denser vapour that is gentler on the throat. Particularly helpful if PG is the issue.
Lower the wattage
If your device has adjustable power, drop it 5 to 10 watts. Cooler vapour irritates the throat less.
Try a different flavour
Move away from menthol, cinnamon or strong citrus. Try a milder fruit or tobacco flavour. Often fixes flavour-specific coughing within a few sessions.
Drink water
PG-induced dryness is much worse if you are not hydrating. Sip water during vaping sessions, not just between.
Replace your coil
An old, burnt coil produces harsh, acrid vapour that triggers coughing. If yours is more than 2 weeks old or tastes burnt, replace it.

About the quit cough

If you have recently stopped smoking and switched to vaping, you may experience increased coughing in the first few weeks. This is normal and usually means good things.

The cilia in your airways become active again once they are no longer being suppressed by smoke. Their job is to sweep out trapped tar, mucus and debris. The coughing that comes with this is your lungs clearing themselves.

What to expect:

Duration: Usually 1 to 4 weeks. Sometimes longer for heavy long-term smokers.
Type: Often productive, bringing up brown or grey mucus. This is the tar leaving.
Pattern: Often worse in the morning. Improves gradually rather than suddenly.
What helps: Hydration, steam inhalation, patience.
When it should worry you: If it has not improved at all after 6 weeks, or if you are coughing up blood, see a GP.

When to see a GP

Most vape-related coughing is mild and clears with simple changes. Speak to a GP or call NHS 111 if any of these apply:

A cough that has lasted more than 3 weeks and is not improving
Coughing up blood or rust-coloured mucus
Cough with chest pain, fever or shortness of breath
Wheezing or whistling sound when you breathe
Significant weight loss alongside the cough
Sudden severe coughing fits that interfere with breathing
Existing lung condition (asthma, COPD) and a worsening cough since starting to vape

The bottom line

Coughing while vaping is common and usually fixable

Most cases come down to technique, nicotine strength, PG or wattage. Adjusting these solves it for most vapers.

A quit cough is different and temporary

If you have just stopped smoking, the cough is often your lungs healing. Usually settles within a few weeks.

Persistent coughs need a GP

Anything lasting more than 3 weeks, or with red flag symptoms, deserves a proper investigation.

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The six common causes

Wrong inhalation technique

Ex-smokers often inhale vape the same way they smoke. Vape needs a slower, gentler draw. Inhaling too fast or too deep is the single biggest cause of new-vaper cough.

Nicotine strength too high

Higher nicotine, especially freebase, gives a stronger throat hit that triggers coughing. 20mg salts and 12mg+ freebase regularly cause coughing in people who are not used to them.

PG sensitivity

About 8% of people are sensitive to propylene glycol to some degree, with about 1% reporting more serious reactions. PG dries the throat, which is the primary trigger.

Wattage too high

Running a device above the coil's recommended range produces hotter, harsher vapour. Common with sub-ohm tanks and DIY setups. Adjustable devices often default too high.

Strong flavours

Menthol, cinnamon, citrus and some dessert flavours irritate the throat more than mild flavours. Switching to a less intense flavour often solves it.

Quit cough (in new ex-smokers)

When you stop smoking, the tiny hairs (cilia) in your lungs recover and start clearing out trapped tar. The coughing is temporary, usually 1 to 4 weeks, and a sign your lungs are healing.

Working out which is yours

The pattern of when you cough usually gives it away.

Coughing the moment you inhale

Almost always technique or nicotine strength. Vapour hitting the throat too hard or too hot. Try slower draws or lower nicotine.

Coughing after exhale

More likely PG dryness or irritation building up. Switch to higher VG or stay better hydrated.

Persistent cough throughout the day

Could be PG sensitivity, or quit cough if you have just stopped smoking. Try a few days nicotine-free to test which.

Cough only with one specific flavour

Almost certainly a flavour or ingredient sensitivity. Switch flavours and the cough should stop.

Wet productive cough with brown mucus

Quit cough. Your lungs are clearing out tar from previous smoking. Drink water and wait it out.

The fixes that work

Try these in order. Most vaper's cough resolves with one or two changes.

Slow down your inhale

Take longer, gentler draws. Try counting to 3 or 4 during the puff rather than pulling hard for 1 to 2 seconds. This single change fixes about a third of cases.

Try mouth-to-lung (MTL) instead of direct-to-lung (DTL)

MTL means drawing vapour into your mouth first, then breathing it in. Closer to how you draw on a straw. Pod kits and disposables are usually MTL. Sub-ohm tanks are DTL and need a different technique.

Lower your nicotine strength

Going from 20mg to 10mg salts, or 12mg to 6mg freebase, can transform the experience. Less harsh throat hit, much less coughing.

Switch to nicotine salts if on freebase

Nic salts are formulated to be smoother on the throat at any given strength. If you find freebase too harsh, the same strength in salts is easier on the throat.

Try higher VG e-liquid

Move from 50/50 to 70/30 VG/PG. Smoother, denser vapour that is gentler on the throat. Particularly helpful if PG is the issue.

Lower the wattage

If your device has adjustable power, drop it 5 to 10 watts. Cooler vapour irritates the throat less.

Try a different flavour

Move away from menthol, cinnamon or strong citrus. Try a milder fruit or tobacco flavour. Often fixes flavour-specific coughing within a few sessions.

Drink water

PG-induced dryness is much worse if you are not hydrating. Sip water during vaping sessions, not just between.

Replace your coil

An old, burnt coil produces harsh, acrid vapour that triggers coughing. If yours is more than 2 weeks old or tastes burnt, replace it.

About the quit cough

If you have recently stopped smoking and switched to vaping, you may experience increased coughing in the first few weeks. This is normal and usually means good things.

The cilia in your airways become active again once they are no longer being suppressed by smoke. Their job is to sweep out trapped tar, mucus and debris. The coughing that comes with this is your lungs clearing themselves.

What to expect:

Duration: Usually 1 to 4 weeks. Sometimes longer for heavy long-term smokers.

Type: Often productive, bringing up brown or grey mucus. This is the tar leaving.

Pattern: Often worse in the morning. Improves gradually rather than suddenly.

What helps: Hydration, steam inhalation, patience.

When it should worry you: If it has not improved at all after 6 weeks, or if you are coughing up blood, see a GP.

When to see a GP

Most vape-related coughing is mild and clears with simple changes. Speak to a GP or call NHS 111 if any of these apply:

A cough that has lasted more than 3 weeks and is not improving

Coughing up blood or rust-coloured mucus

Cough with chest pain, fever or shortness of breath

Wheezing or whistling sound when you breathe

Significant weight loss alongside the cough

Sudden severe coughing fits that interfere with breathing

Existing lung condition (asthma, COPD) and a worsening cough since starting to vape

The bottom line

Coughing while vaping is common and usually fixable

Most cases come down to technique, nicotine strength, PG or wattage. Adjusting these solves it for most vapers.

A quit cough is different and temporary

If you have just stopped smoking, the cough is often your lungs healing. Usually settles within a few weeks.

Persistent coughs need a GP

Anything lasting more than 3 weeks, or with red flag symptoms, deserves a proper investigation.

Age Verification

Why does vaping make me cough?

The six common causes

Working out which is yours

The fixes that work

About the quit cough

When to see a GP

The bottom line

Health Guidance

Why does vaping make me cough?

The six common causes

Working out which is yours

The fixes that work

About the quit cough

When to see a GP

The bottom line

Health Guidance