Constantly smelling a chemical odor that isn't actually there is typically caused by a condition called phantosmia. This is an olfactory hallucination where your brain registers smells—often described as chemical, metallic, or burnt—when no such substance is in your environment.
Smelling chemicals or burning odors when nothing is there is called phantosmia (olfactory hallucination). The condition ranges from harmless temporary glitches in your nerves to indicators of underlying medical issues.
Yes, many users report that Mounjaro (tirzepatide) affects their sense of smell. While not officially listed as a common clinical side effect by the manufacturer, it is a widely documented phenomenon linked to GLP-1 medications.
In the recovery phase of COVID-19, a patient normally regains their senses back. However, some people experience a change to their sense of smell about three to four months following infection. People report certain things—like food or body odor—smelling like garbage, rotten eggs, or chemicals.
A person smelling like chemicals is usually caused by metabolic byproducts, dietary habits, environmental exposure, or underlying medical conditions. The specific chemical scent often points to the root cause:
Liver failure can produce a distinct and persistent body and breath odor known as fetor hepaticus. Often described as a mixture of rotten eggs, garlic, and a sweet, musty, or musty-fruity scent, it is caused by the buildup of sulfur-containing compounds that a failing liver can no longer process.
One of the most common causes of strange smells in the nose, including ammonia or metallic odors, is a sinus infection. When the sinuses become inflamed and filled with mucus, bacteria can start to grow, producing unpleasant odors. This kind of smell may be described as metallic, sour, or chemical-like.
The mucus drains to the back of your throat, resulting in bad breath. Also, when you have a sinus infection, there may be bacteria trapped in the nasal cavities, which produces an unpleasant smell.
Possible symptoms include:
Causes of phantom smells can include problems with the nose, brain, or nervous system. It's important to note that phantosmia can also be caused by psychological factors, such as stress, anxiety, and obsessive-compulsive disorder (OCD)—though these cases are less common.
Ozempic is not inherently "hard" on a specific organ for most people, but it primarily affects the pancreas, gallbladder, kidneys, and digestive system.
Amy Schumer stopped taking Ozempic (and subsequently Wegovy) because it caused severe gastrointestinal side effects, particularly unbearable nausea and vomiting. The medication made her so sick and weak that she was often bedridden, making it impossible for her to engage in everyday activities or play with her son.
"Ozempic tongue" is a non-medical, social media term used to describe a persistent metallic, bitter, or sour taste in the mouth that some users of GLP-1 medications (like Ozempic, Wegovy, and Mounjaro) experience. It is generally a temporary side effect linked to taste perception rather than physical damage to the tongue.
Parosmia is a distorted sense of smell. It happens when smell receptor cells in your nose don't detect odors or transmit them to your brain. Causes include bacterial or viral infections, head trauma, neurological conditions and COVID-19. Parosmia is usually temporary, but in some cases, it's permanent.
A: Smelling odors that aren't really there, including smoke, is called “phantosmia,” or olfactory hallucination. “Olfactory hallucination could be a sign of a temporal lobe tumor,” Grimm says.
Low estrogen, common during perimenopause and menopause, typically causes body odor to become more intense, musky, or sour due to shifts in sweat composition and vaginal pH. Vaginal scent may change to become more alkaline, sometimes described as slightly sweet, bready, or yeasty. Other common smells include a sharper, stronger, or onion-like scent underarms or in the groin.
Long COVID
Symptoms can include: extreme fatigue (tiredness) shortness of breath, heart palpitations, chest pain or tightness. cough.
The primary symptoms of currently circulating respiratory viruses—such as updated COVID-19 variants and seasonal flu strains—include fever or chills, persistent cough, and severe fatigue. Because viruses have overlapping symptoms, distinguishing between them based on symptoms alone is difficult without testing.
While COVID-19 most commonly causes respiratory issues like a cough or fever, the virus can trigger many unusual, systemic responses. The most commonly reported "weird" symptoms include sudden loss of taste or smell, gastrointestinal distress, skin rashes, "COVID toes," and neurological effects like brain fog or severe delirium in older adults.
Fungal sinusitis can cause a persistent foul or musty odor inside your nose. Patients often describe the scent as similar to rotting wood, burning matter, or an old, poorly ventilated house.
The characteristic "old age smell" is scientifically known as nonenal (or 2-nonenal). It is a chemical compound produced when the skin's natural oils and fatty acids break down and oxidize as we age.
The first signs of a sinus infection (sinusitis) often mirror a severe cold, including nasal congestion, a low-grade fever, and a dull, heavy sinus headache. As inflammation increases, these early symptoms typically progress into distinct facial pain, thick discolored mucus, and pressure that worsens when bending forward.
A sudden chemical smell can be an environmental hazard or a neurological symptom. Take immediate action based on where the smell is strongest:
Riboflavin (Vitamin B2)
But people with certain gene changes, or liver or kidney dysfunction, may not be able to process it. TMA that builds up is eventually released through sweat, urine, reproductive fluids, and breath, causing a strong, fishy odor.
Sinuses become infected when small particles such as dust, pollen, or animal dander enter the nasal passages and become trapped. This can cause inflammation, which leads to a buildup of mucus and bacteria in the sinuses. As the bacteria and mucus accumulate, they produce a foul odor that can smell like rotten eggs.