Why Scented Candles Give Some People Headaches - Causes and Prevention

Introduction

Candles can help set a relaxing mood with their warm, soothing glow and pleasant scents. However, some people experience headaches or even migraines after burning certain candles. This is especially true for scented candles, which contain chemicals and fragrances that can trigger reactions in sensitive individuals when inhaled.

Potential Causes of Candle-Triggered Headaches

There are several components of scented candles that may contribute to headaches:

Fragrance Chemicals

Synthetic fragrances added to candles contain volatile organic compounds (VOCs) and other chemicals. These can be irritating and trigger headaches when inhaled, especially for those with scent sensitivities.

Soot

Candle smoke contains fine soot particles that can worsen indoor air quality and inflame sinuses. This may lead to sinus headache pain and pressure.

Wax Fumes

Heated candle wax produces fumes, especially paraffin wax. Inhaling these vapors may provoke headaches in some people.

Lead in Wicks

Lead cores were once common in candle wicks until being phased out due to toxicity. Inhaling lead fumes can cause headaches. Lead-core wicks are rare today but may still be found in some candles.

Trigeminal Nerve Response

The trigeminal nerve senses fragrance and can transmit signals that aggravate migraines. Strong scents from candles may overstimulate this nerve, resulting in headache pain.

Types of Candles Most Associated with Headaches

Although any scented candle can potentially trigger headache issues, these types are most problematic for sensitive individuals:

Paraffin Candles

Paraffin wax produces more soot and fumes when burned compared to beeswax or soy wax. The petroleum-derived wax also emits VOCs.

Artificial Fragrances

Candles scented with synthetic fragrance oils tend to have more irritating chemicals than essential oil or naturally-scented candles. Artificial fragrances are common in cheap candles.

Floral and Citrus Scents

Floral scents like lavender, rose, jasmine and citrus scents with lemon, orange and lime notes tend to be stronger and more headaches in some people.

Large Jar Candles

Larger pillar-style and jar candles with more wick surface area produce more soot and scent to fill the space, which can trigger headaches faster.

Other Health Risks of Candles

In addition to headaches, scented candles may pose other health risks including:

Respiratory Irritation

Candle soot, fumes, and chemicals can irritate airways and worsen asthma symptoms when inhaled.

Allergic Reactions

Synthetic fragrances and candle ingredients may cause allergy flare ups, skin rashes, and other reactions in sensitive people.

Hormone Disruption

Some candle chemicals like phthalates and parabens mimic hormones in the body and may impact endocrine function.

Carcinogens

Burning candles generates low levels of benzene and other compounds linked to cancer risk.

Soot Build Up

Candle soot can coat surfaces, fabrics, and airway passages with fine black particles that are difficult to remove.

Tips to Prevent Candle-Induced Headaches

Those prone to headaches from candles can try these preventive tips:

Choose Unscented

Burn plain unscented candles made with soy, beeswax, or vegetable-based waxes to avoid fragrances.

Improve Ventilation

Burn candles in well-ventilated rooms with open windows or fans to dilute and disperse scents and particles.

Trim Wicks

Trim wicks to 14 inch before lighting to reduce smoke, soot, and fumes.

Limit Burn Time

Extinguish candles after 1-2 hours maximum to prevent excessive scent and soot buildup.

Avoid Problematic Ingredients

Choose candles made without paraffin wax, synthetic dyes, phthalates, lead wicks, and other concerning ingredients.

Use Soy, Beeswax, or Vegetable-Based

Soy, beeswax, coconut, and other natural vegetable-based waxes produce less soot and fumes.

Avoid Synthetic Fragrances

Go for candles scented only with pure essential oils, not artificial chemical fragrances.

Consider Battery-Operated

Battery-operated flameless candles avoid issues with smoke, fumes, fragrances, and soot.

Seeking Medical Help

Those who frequently get severe headaches or migraines from scented candle exposure should see their doctor or neurologist. They can help identify any underlying conditions that may be triggering candle sensitivity.

Doctors may recommend avoiding candles or suggest medications to prevent headache episodes in candle-sensitive individuals. For severe recurring migraines, prescription preventive medications or Botox injections may be warranted.

Risk Groups Who Should Avoid Candles

While anyone can potentially get headaches from scented candles, those in high risk groups should exercise particular caution or avoid candle usage altogether. At-risk groups include:

• Migraine sufferers
• Those with respiratory conditions like asthma
• People with scent, chemical, or smoke sensitivities
• Pregnant women
• Young children

Safer Candle Alternatives

For those who want to avoid issues with breathing in candle fumes, soot, and lead, there are safer options to consider:

Beeswax Candles

100% pure beeswax candles burn clean and are non-toxic.

Soy Candles

Soy wax candles made from vegetable oil produce less soot.

Wood Wick Candles

Wooden wicks reduce soot emissions from the candle flame.

Essential Oil Candles

Candles scented only with pure essential oils have fewer scent chemicals.

Flameless Candles

LED flameless candles eliminate smoke, fumes, and scents.

Beeswax Melts

Beeswax aromatherapy melts release scent without a burning wick.

Diffusers

Essential oil diffusers disperse scent without candles.

The Bottom Line

Scented candles contain fragrances, chemicals, soot, and fumes that can trigger headaches or migraines in those sensitive to their components. Those prone to candle-induced headaches should stick to unscented, natural vegetable and beeswax candles, improve ventilation, and avoid synthetic scented candles. With some care in candle selection and usage, most headache sufferers can safely enjoy the calming ambiance candles can provide without adverse effects.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.