
Candles are a popular way to create a cosy atmosphere and are often used for decoration, relaxation, and mood enhancement. However, there is an ongoing debate about whether burning candles can have negative health effects, especially for people with respiratory issues or allergies. While some claim that candles release harmful toxins and pollutants such as volatile organic compounds (VOCs) and phthalates, others argue that the amount of these emissions is too small to pose a significant health risk. So, are candles helpful or harmful when it comes to dealing with colds and congestion?
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What You'll Learn

Eucalyptus candles can help fight colds and flus
There is an ongoing debate about whether burning candles is bad for your health. Some candles, such as those made with paraffin wax, have been found to release toxins, including benzene and toluene, which may cause health issues such as coughing, headaches, and shortness of breath. However, other types of candles, such as those made with natural waxes like beeswax, soy wax, or palm wax, are considered safer and less likely to release harmful chemicals.
While the potential negative effects of certain candles are a concern, it's important to note that proper ventilation when burning candles can significantly reduce these risks. Additionally, the amount of harmful chemicals released by candles is typically very low and may not pose a significant health threat, according to some studies.
Now, let's discuss how eucalyptus candles can help fight colds and flus. Eucalyptus oil, derived from the leaves of eucalyptus trees, has been used for its medicinal properties for centuries, especially in Australia. Its distinctive aromatic scent is not only comforting but also has therapeutic benefits.
One of the most effective ways to use eucalyptus oil for cold and flu relief is through steam inhalation. Adding a few drops of eucalyptus oil to hot water and inhaling the warm, moist air can help clear and revitalise your sinuses while providing relief from congestion. Eucalyptus oil has antiviral and antimicrobial properties, making it ideal for fighting viruses and respiratory problems associated with colds and flus.
In addition to steam inhalation, eucalyptus oil can be used in other ways to combat cold and flu symptoms. For example, applying diluted eucalyptus oil to cold sores may help reduce pain and speed up healing. Eucalyptus oil also has antibacterial properties, which can help fight germs and improve oral hygiene. Furthermore, inhaling eucalyptus oil vapour can assist in loosening mucus and clearing your chest, making it easier to expel when coughing.
While eucalyptus candles can be beneficial for cold and flu relief, it's important to use them safely. Eucalyptus oil should always be diluted before use, and it's recommended to consult a healthcare professional before incorporating it into your treatment plan. Additionally, while eucalyptus can help alleviate respiratory symptoms, it may worsen asthma in people allergic to it. Therefore, individuals with asthma should exercise caution when using eucalyptus products.
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Peppermint candles can help reduce fever and congestion
There is a lot of debate about whether candles are good or bad for your health. While candles are popular for relaxation, mood, ambiance, and decoration, some people claim that candles release potentially harmful toxins. Most candle manufacturers stopped using lead in their candles in the 1970s due to concerns about lead poisoning, especially in children.
Today, many candles are made from paraffin wax, beeswax, soy wax, or palm wax. Research shows that burning paraffin wax releases potentially harmful chemicals such as volatile organic compounds (VOCs) and phthalates. However, some people argue that candles do not contain enough of these toxins to pose a significant health threat.
One way to minimize the potential risks associated with burning candles is to use candles made from natural sources, such as palm stearin, which releases less soot and fewer dangerous chemicals than paraffin wax. Proper ventilation is also important, as burning candles in poorly ventilated areas can worsen indoor air quality and increase exposure to pollutants.
While the potential health risks of burning candles are a concern, there are also benefits associated with candle use. For example, candles can help to promote relaxation and stress relief, especially those containing essential oils.
Peppermint candles, in particular, can be helpful for reducing fever and congestion associated with colds and the flu. Peppermint oil is a natural decongestant and fever reducer that contains menthol, which helps to relieve congestion and soothe sore throats. Steam inhalation of peppermint oil or direct inhalation from a bottle or cotton ball can be effective methods of relieving cold and flu symptoms. However, it is important to note that peppermint oil should not be given to children under six years old and that inhaling large quantities of essential oils can cause dizziness, headache, and nausea.
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Burning candles releases chemicals, but the impact on health is debated
There is a lot of debate about whether candles are good or bad for your health. Candles are popular for relaxation, mood, ambiance, and decoration. They are also used to release relaxing fragrances.
Burning candles releases hydrocarbons, chemical compounds consisting of hydrogen and carbon, into the air. In particular, burning candles release trace quantities of toluene and benzene. Toluene is commonly used in paint thinners and adhesives. Without proper ventilation, toluene exposure can irritate your eyes, nose, throat, and skin. It can also cause headaches, dizziness, confusion, and anxiety. Benzene is a gas emitted by forest fires, volcanoes, and burning coal or oil. While the vast majority (90%) of all benzene exposure occurs due to smoking, it is also used in industrial and pharmaceutical settings.
Some studies have shown that burning candles does release toxic chemicals, but it is not clear whether these chemicals harm your health. A 2009 study found that burning paraffin wax releases gases and volatile organic compounds (VOCs) like toluene and benzene, which are known to cause cancer. However, the amount of particulate matter released from burning candles is not enough to cause health problems in humans. If you use candles properly in a well-ventilated space, they are unlikely to significantly impact your health.
Another study found a possible link between burning candles in poorly ventilated areas and bladder cancer. The study suggested that chemicals called phthalates were the problem. However, there is disagreement with this concern as some organizations have questioned the reliability of the research.
Candles can also cause allergy and asthma symptoms. Scented candles can cause headaches and migraines for some people. Burning paraffin wax candles can cause headaches, shortness of breath, and coughing. However, candles made from natural sources, such as beeswax and soy wax, are better options for minimizing the amount of particulate matter you breathe in.
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Paraffin candles may be worse for health than beeswax or soy wax candles
While candles can be a source of comfort and relaxation for many, it is important to be aware of their potential impact on our health, especially when we have a cold. Paraffin candles, in particular, may be more harmful to our health compared to beeswax or soy wax candles due to the toxins they release.
Paraffin wax, derived from petroleum refining, is a highly toxic substance that can poison the air we breathe. When burned, paraffin candles release toxic fumes and potentially dangerous chemicals, including volatile organic compounds (VOCs) and phthalates. Exposure to these chemicals has been linked to adverse health effects such as headaches, shortness of breath, and coughing. Additionally, the soot produced by paraffin candles can leave unsightly stains on walls and ceilings, indicating the presence of microscopic particles that can be inhaled and cause respiratory irritation.
On the other hand, beeswax candles have been found to improve air quality when burned. Beeswax releases negative ions that attract and neutralize positively charged air contaminants, such as pollen, dust, and pollutants. These neutralized ions are then drawn back into the candle flame or fall harmlessly to the ground, effectively clearing the air of potential allergens and irritants.
Soy wax candles, while not a natural wax, offer a cleaner burn than paraffin candles. They produce less soot and lower levels of toxic chemicals, making them a healthier alternative. However, it is important to note that soy farming has been associated with environmental concerns, including deforestation and the use of pesticides.
When dealing with a cold, it is advisable to opt for beeswax or soy wax candles over paraffin candles to minimize potential respiratory irritation and exposure to toxic fumes. Proper ventilation and trimming candle wicks are also important practices to reduce the impact of candle smoke on our health. While candles may not be the primary cause of health issues, being mindful of their potential impact can help us make informed choices, especially when managing respiratory conditions like colds.
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Scented candles can trigger asthma and allergies
There is a lot of debate about whether candles are good or bad for your health. Candles can cause allergy and asthma symptoms. A university survey found that people who are sensitive to fragrances can experience headaches, shortness of breath, and coughing from exposure to scented candles. Even the slightest fragrances can become an irritant to people with asthma or allergies, triggering a burning sensation in the throat, chest tightness, dry cough, watery or red eyes, nasal congestion, or a runny nose.
The problem is often the fragrance and not necessarily the candle, so unscented or natural candles may be okay to use. Burning scented candles can release volatile organic compounds (VOCs) like formaldehyde, which may increase cancer risk. However, they release less than half of the recommended amounts set by the World Health Organization (WHO).
The type of wax used in candles can also be a factor. Paraffin-based candles have been found to release toxins, including benzene and toluene, while soy wax candles burn slower and produce less soot. Beeswax and soy wax candles are often touted as non-toxic, environmentally-friendly alternatives to paraffin candles, but these sometimes come at a higher price tag.
In general, burning candles in a well-ventilated space is unlikely to significantly impact your health. Proper ventilation is key when burning scented candles, as the problem with candle emissions is not necessarily the emission levels but poor ventilation. Lower-quality candles also emit more particulate matter and chemicals, so choosing higher-quality candles and burning them responsibly can help minimise risk.
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Frequently asked questions
While candles are not a cure for colds, certain candles with scents like peppermint and eucalyptus can help clear sinuses and fight off colds and flu.
Candles are popular for relaxation, improving mood, ambiance, and decoration. They can help lower stress and promote relaxation.
There is a lot of debate about whether candles are good or bad for your health. Burning candles does release toxic chemicals, but it is not clear if these chemicals are harmful to your health.
Candles can worsen indoor air quality with the release of pollutants, including black carbon, formaldehyde, particulate matter, polycyclic aromatic hydrocarbons (PAHs), and nitrous oxide. They can also trigger allergies, asthma, or migraines.
To minimise risk, opt for higher-quality candles made from beeswax, soy wax, or other plant-based waxes. These candles tend to burn slower, produce less soot, and are less likely to release harmful toxins.











































