Why Do My Coughs Taste Weird?

A cough doesn’t only push air out. It also shoves mucus, saliva and sometimes traces of other fluids across your tongue, so the taste you notice is usually a clue to what the cough is carrying up. Metallic, bitter, salty, sweet and foul tastes each tend to point to a different source. Nearly all of them are common, short-lived side effects of an ordinary cough rather than a sign of something serious.

Metallic or Blood Taste When Coughing

The force of a strong cough can push tiny particles of blood up into your mouth.1Mucinex USA. Cough Tasting Like Metal: Causes & Solutions Frequent, intense coughing, as in bronchitis, can irritate the lining of the airways enough to make it bleed slightly.2HealthCentral. Why Do My Coughs Taste Weird? Mucus from a cold or another upper respiratory infection can also carry blood up with it.3Mucinex USA. Cough Tasting Like Metal: Causes & Solutions So a deep chest cough during a cold can leave a metallic taste even when you see no blood.

Blood tastes metallic because it is rich in iron-containing haemoglobin. Even an amount too small to see can register on your taste buds. Blood from the airway lining mixes with mucus and saliva, so the phlegm can look clear while the taste is still there.

You may notice a faint pink tinge or a few tiny streaks in the phlegm. It usually eases over several days as the cough calms. Bleeding from the nose or gums can drain into the mouth and taste the same, so a metallic taste does not always come from the chest.

To ease the irritation, sip warm drinks and stay hydrated, which thins mucus so coughs are less forceful. Humidified air or steam can soothe a raw airway. Honey can calm a cough in adults and in children over one. Staying away from smoke avoids further irritation.

Coughing up blood on more than one occasion should be checked, as covered below. Large amounts or clots are an urgent sign.

What Each Taste Usually Points To

Tastes often overlap, such as salty and bitter together when sinus drip and reflux happen at once, so one taste may have more than one cause. Other symptoms are often more informative than the taste itself, for instance heartburn alongside a bitter taste or a blocked nose alongside a salty one. A taste that fits no row is still worth mentioning if it persists.

Salty Taste From Sinus Mucus

A sinus infection can cause postnasal drip, which is mucus dripping down the back of your throat. Infected mucus can have a high salt concentration, which makes your mouth taste saltier.10Harvard Health. What could a persistent salty taste in the mouth mean? Coughing up that mucus brings the salty taste forward. Postnasal drip is also a common trigger for cough in its own right.

Sinus-related drip usually comes with a blocked or runny nose and pressure around the cheeks, eyes or forehead. You may clear your throat constantly, and the drip and cough often get worse when you lie down because mucus pools at the back of the throat. The mucus may turn thick and yellow or green, though colour alone does not prove an infection or a need for antibiotics. The salty taste is often strongest on waking, after mucus has collected overnight.

Saline nasal rinses flush mucus out, and steam and fluids help thin it. Sleeping propped up reduces the overnight drip. If sinus symptoms last beyond ten days or get worse, see a doctor.

Bitter or Sour Taste From Acid Reflux

When stomach acid travels up to the back of the throat, it can leave a bitter taste.11PubMed Central. Pulmonary manifestations of gastroesophageal reflux disease The acid can irritate the throat and cause hoarseness and mucus dripping down the throat.12PubMed Central. Pulmonary manifestations of gastroesophageal reflux disease From there it can bring on a recurring cough and chest congestion.13PubMed Central. Pulmonary manifestations of gastroesophageal reflux disease Acid that slips into the lungs can lead to inflammation, asthma, bronchitis or pneumonia.14PubMed Central. Pulmonary manifestations of gastroesophageal reflux disease So a bitter-tasting cough that keeps coming back is worth raising with a doctor.

A cough that gets worse after meals, or when lying down or bending over, fits reflux because acid travels up more easily in those positions. Heartburn or sour-tasting burps alongside the cough strengthen the case. A hoarse voice first thing in the morning can come from acid irritating the throat overnight. Some people have reflux with a cough but no heartburn at all, so the absence of a burning feeling does not rule it out.

A few everyday steps can help. Avoid eating in the two to three hours before bed, and raise the head of the bed. Cut back on large meals, alcohol, and fatty or spicy food. Antacids may help; if the cough and taste persist, see a doctor.

Foul or Sulfur Taste From Tonsil Stones or Infection

Tonsil stones are small lumps of minerals like calcium that form in the tonsils.15Oravix. What Are Tonsil Stones? Causes, Signs and Prevention Because they hold sulfur-producing bacteria, they smell like sulfur or rot.16Oravix. What Are Tonsil Stones? Causes, Signs and Prevention A cough can dislodge one and release a sudden foul taste.

A tonsil stone is usually a small white or yellow lump in a pocket of the tonsil, and sometimes you cough one out. Persistent bad breath and a sensation of something stuck at the back of the throat are common signs. Many are too small to see, so you can have one without being able to spot it. Gargling with salt water and brushing carefully, including the tongue, help keep them from building up.

Gum disease and poor brushing can add foul tastes of their own, and brushing the tongue removes bacteria. If the taste lingers even when you aren’t coughing, a dental check makes sense. Fever together with foul-tasting phlegm is a reason to see a doctor promptly,17AI DiagMe. Bad Tasting Phlegm: Causes, Treatments and Red Flags because it can signal a chest infection that may need treatment.

Medicines and Inhalers That Change Taste

Some medicines themselves taste bitter or metallic.18PubMed Central. Oral adverse effects of drugs: Taste disorders They reach taste buds directly from the mouth, or by passing into saliva after being absorbed.19PubMed Central. Oral adverse effects of drugs: Taste disorders With long-term use some build up in taste buds, so taste changes can appear months or years later, as with lithium.20PubMed Central. Oral adverse effects of drugs: Taste disorders Others distort sweet or salty signals, so food and drinks taste bitter or sour.21PubMed Central. Oral adverse effects of drugs: Taste disorders

The inhaler ipratropium can cause a bitter taste, dry mouth and throat, and cough.22PubMed Central. A review on herbal antiasthmatics A bitter cough after using an inhaler may therefore be the medicine, though it isn’t proof on its own. Don’t stop a prescribed medicine; ask your doctor or pharmacist about alternatives.

To work out whether a medicine is behind it, note when the taste began compared with starting a new medicine or changing a dose. A close match is a useful clue, though not proof. The leaflet’s side-effect list often names a bitter or metallic taste. Rinsing your mouth with water after an inhaler removes medicine left on the tongue and throat, which can lessen the taste. Cough syrups, lozenges and other remedies have their own flavours that can be mistaken for a symptom.

Sweet Taste and Other Less Common Causes

Eating very few carbs makes your body burn fat and produce ketones, including acetone.23Aspen Dental. What causes sweet or fruity breath? Acetone leaves through the breath and can give a sweet smell or taste.24Aspen Dental. What causes sweet or fruity breath?

If you recently cut back sharply on carbohydrates, ketones from burning fat are a likely explanation and are usually not a problem. Sweet or fruity breath together with intense thirst, frequent urination or unexplained weight loss can be a sign of diabetes and needs prompt medical assessment.

In a rare condition, coughing, laughing or sneezing can trigger smells that aren’t really there.25PubMed Central. Olfactory Hallucinations without Clinical Motor Activity: A Comparison of Unirhinal with Birhinal Phantosmia An unpleasant smell or taste every time you cough, with no other cause, is worth mentioning to a doctor.

When a Weird-Tasting Cough Needs a Doctor

Go urgently if you cough up more than a spoonful of blood, have severe breathlessness or chest pain, or have a high fever with confusion.

At the appointment, describe the exact taste and when it happens, for example only after coughing fits or also at rest. List every medicine, inhaler, supplement and lozenge you use, since any of them can change taste. Mention heartburn, sinus symptoms, weight changes and sweats, which help narrow down the cause. Bring a photo of any blood-streaked phlegm, because it is hard to describe and may change by the time of your visit.

How Long the Taste Usually Lasts

Most cold-related coughs clear within about three weeks, so a taste tied to a cold should fade as the cough does, typically within days to a couple of weeks. Medicine-related taste changes are different and can last as long as you take the drug.32PubMed Central. Oral adverse effects of drugs: Taste disorders

Rinsing and gargling after coughing fits clears what the cough leaves behind. A taste that lingers after the cough has gone is worth checking.