A Guide to Vaper’s Tongue and Vaper’s Cough

2nd Aug 2017

V2 UK guide to vaper's tongue and vaper's cough, showing common factors including dehydration, smell, PG/VG ratio and nicotine strength, with practical prevention advice.

By Joe Delaney; Senior Vape Product Specialist, V2 UK.

Originally Published: 2nd August 2017.

Last updated: 19th August 2026.

Vaping products are for adult smokers and existing vapers only. Vaping is not risk-free. Not suitable for non-smokers or anyone under 18.

Vaper's Tongue and Vaper's Cough: What Are They and How to Prevent Them

Vaper's tongue is a sudden loss of flavour or a numb feeling on the tongue, and vaper's cough is a dry, tickly cough that shows up in the first few days of vaping. Both are common, both are usually gone within a few days to a couple of weeks, and both have a handful of well-known causes you can work through one at a time.

Vaper's Tongue: Why Your E-Liquid Suddenly Tastes of Nothing

Your all-day flavour has gone flat, or your tongue feels a little numb no matter what you vape. That's vaper's tongue, sometimes called vaper's fatigue, and it isn't a sign anything is wrong with your device.

Vaping the same flavour for too long is the single biggest cause. Your palate gets used to a flavour the same way your nose stops noticing a smell you're around all day, and the taste fades even though the e-liquid hasn't changed.

Dehydration plays a bigger role than most people expect. The bases in e-liquid, propylene glycol (PG) and vegetable glycerine (VG), both draw moisture out of your mouth as you vape, and PG in particular is hygroscopic, meaning it actively bonds with the water in your saliva. NHS guidance on hydration recommends aiming for 6 to 8 cups or glasses of fluid a day, and topping that up matters more when you're vaping regularly.

Recently switched from smoking? Years of smoking can dull your taste buds, which is one reason flavour sometimes feels muted just after quitting. The good news is taste buds regenerate over time, so this tends to improve the longer you stay smokefree.

Illness plays a part too. A cold, blocked sinuses, or a sore throat can all mute flavour the same way they mute the taste of food, and it's not specific to vaping. If a sore throat is the main issue rather than a lost sense of taste, our guide to why your throat feels sore after vaping covers that separately. Poor oral hygiene can affect flavour too, so a solid brushing routine is worth ruling out alongside everything else, per NHS advice on gum disease.

Old or expired e-liquid loses flavour intensity over time, so if a bottle's been open a while, that's worth checking before you assume the problem is you.

Why Smell Plays Such a Bigger Role Than You'd Think

Most of what you taste is actually smell rather than your tongue doing the work. NHS ENT guidance puts it at 60 to 70% of flavour perception, which is why a blocked nose from a cold flattens your vape the same way it flattens a meal. Short-lived changes like this are genuinely common: smell disorders as a whole affect around 5% of people at any given time, and most cases clear up on their own.

Doctors have specific terms for longer-lasting changes, in case you come across them: a reduced sense of smell is hyposmia, a complete loss is anosmia, smells seeming different than they should is parosmia, and smelling something that isn't there is phantosmia. None of these are caused by vaping itself, but they're worth knowing if a change in taste or smell sticks around rather than settling within a couple of weeks.

How to Fix Vaper's Tongue

Switch flavours for a few days. Don't swap for something similar, pick a genuinely different profile. A couple of days on something else is usually enough to reset your palate before you go back to your usual Platinum e-liquid flavour. If you're switching flavours often, clean your tank out properly first, or the last flavour will linger and muddy the new one.

Hydrate properly, not just when you remember. Little and often works better than one large glass. If you're chain-vaping through the day, your fluid intake needs to keep pace.

Give it time if you've recently quit smoking. Taste bud regeneration isn't instant, and pushing through a flat period is common for people who've recently managed a smoking relapse or are newly smokefree.

Try a genuine palate reset. Smelling fresh coffee beans or something citrus between flavours is a trick borrowed from wine and perfume tasters, and plenty of vapers find it works for e-liquid too.

If your sense of taste or smell stays affected for more than a couple of weeks, it's worth getting it checked rather than assuming it's vaping-related. NHS guidance on changes to your sense of smell confirms this is usually not serious and often clears up on its own, but it's still worth ruling out other causes if it persists.

Vaper's Cough: The Dry, Tickly Cough New Vapers Get

That prickly cough at the back of your throat after a few puffs is vaper's cough, and it's most common in the first few days after switching to vaping. It comes up often enough on our Customer Service team calls, emails and LiveChat contacts that it's one of the first things we check for when someone writes in saying their new kit “tastes off.” It isn't the same sensation as cigarette smoke, and for most people it settles down on its own within a matter of days.

What Actually Stops Vaper's Cough?

Check your PG/VG ratio. A 100% PG e-liquid is more likely to trigger a cough than a blended or higher-VG option, since VG is smoother on the throat. If you've been vaping straight PG, this is usually the first thing worth changing.

Reduce your nicotine strength slightly. Too high a nicotine level for your habits can trigger coughing on its own. Our nicotine strength guide walks through how to work out the right level for you, rather than guessing.

Try a different inhalation style. Mouth-to-lung and direct-to-lung feel very different in the throat, and switching between them can settle a cough that one particular style is triggering. Our how to vape guide covers both techniques if you're not sure which you're currently using.

A cough that's stuck around for more than three weeks is generally worth getting checked regardless of the cause. NHS guidance on coughs treats three weeks or more as a persistent cough worth a GP visit, and that applies whether or not vaping is part of the picture.

Frequently Asked Questions

How long does vaper's tongue usually last?

Most cases clear up within a few days, though it can take up to two weeks if the cause isn't addressed. Switching flavours and staying hydrated are usually enough to speed it along.

Is vaper's cough a sign something's wrong with my device?

Not usually. It's far more often down to PG ratio, nicotine strength, or simply adjusting to vaping for the first time, rather than a fault with the kit itself.

Can I prevent vaper's tongue from happening again?

Rotating between two or three flavours rather than vaping the same one constantly is the most reliable way to avoid it recurring, alongside staying hydrated.

Should I stop vaping if I get vaper's cough?

There's no need to stop for a mild, short-lived cough while you adjust. If it persists beyond a few weeks or comes with other symptoms, that's the point to get it checked rather than push through.

About the Author

Joe Delaney looks after the day to day running of V2 Cigs UK and writes its blogs.

When the blog recommends a device, he has used it - and for a leak test that means actually filling kits and trying to make them fail, pocket-carrying them and leaving them upside down overnight, rather than repeating manufacturer claims.

Health, safety and regulatory points are checked against named UK authorities such as the NHS and MHRA, and a product is only ever called "less harmful than smoking" where a UK authority says so. More about how he works, and the family story behind V2, is on Joe's author profile.