
Muscle rubs are creams, gels, or other products applied to the skin to relieve sore muscles and joints. They typically contain active ingredients such as menthol, methyl salicylate, or capsaicin, which create a warming or cooling sensation on the skin. While these products are generally safe and effective, there have been rare cases of serious burns and other side effects associated with their use. This paragraph will explore why muscle rubs sometimes burn and how to use them safely.
| Characteristics | Values |
|---|---|
| Sensation | Warmth or coolness |
| Ingredients | Menthol, methyl salicylate, capsaicin |
| Side effects | Redness, warmth, stinging, burning, blistering, swelling, severe redness, nausea, vomiting, ringing in the ears |
| Complications | Serious skin injuries, chemical burns, hospitalization |
| Application | Only on intact skin, no bandages or heating pads |
| Safety | Rare cases of serious burns, FDA safety warnings |
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What You'll Learn

Topical muscle rubs can cause skin burns
The active ingredients in these topical muscle rubs, such as menthol, methyl salicylate, and capsaicin, are typically responsible for the burning sensation. Menthol and methyl salicylate are the most common culprits for more severe burns. In particular, products containing greater than 3% menthol and 10% methyl salicylate have been associated with a higher risk of burns. It is important to note that these ingredients are commonly found in popular OTC topical pain relievers such as Bengay, Icy Hot, and Flexall.
The burns typically occur within 24 hours of the first application and can lead to serious complications requiring hospitalization. To reduce the risk of burns, it is recommended to apply these products only to intact skin and avoid covering the area with bandages or heating pads. Additionally, it is crucial to follow the directions on the product package and consult a doctor or pharmacist if you have any questions or concerns.
While rare, there have been reported cases of serious adverse reactions to topical muscle rubs. For example, a 17-year-old US athlete died from overdosing on a common muscle rub containing methyl salicylate, which can be toxic if consumed. Therefore, it is essential to use these products with caution and always follow the recommended dosage and application instructions.
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Menthol, methyl salicylate, and capsaicin are common ingredients
Topical muscle pain relievers are available over the counter and are designed to relieve mild muscle and joint pain. They are typically available as creams, lotions, ointments, gels, or patches. While they are generally considered safe, there have been rare cases of serious burns associated with their use.
Methyl salicylate, also known as oil of wintergreen, is particularly toxic if consumed. In one tragic case, a 17-year-old athlete died from overdosing on a muscle rub containing this ingredient. When applied topically, it can also lead to severe chemical burns, especially when used in combination with menthol. The majority of second- and third-degree burns reported to the FDA occurred with products containing both menthol and methyl salicylate in concentrations greater than 3% menthol and 10% methyl salicylate.
Capsaicin, on the other hand, has been associated with fewer reports of burns. It is an active ingredient in chili peppers and creates a warming sensation when applied to the skin. While it is generally considered safe for topical use, it can cause skin irritation and burning sensations in sensitive individuals.
It is important to follow the directions on the package when using these products and to be aware of potential side effects. If you experience any pain, swelling, blistering, or severe redness at the application site, discontinue use and seek medical attention if necessary.
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Muscle rubs can be toxic if consumed
Muscle rubs are topical medications that are applied to the skin to relieve mild muscle and joint pain. They are available over the counter and contain active ingredients such as menthol, methyl salicylate, or capsaicin. These ingredients create a local sensation of warmth or coolness, providing relief from pain and inflammation. While these products are generally safe when used as directed, they can pose serious health risks if consumed or ingested orally.
Methyl salicylate, commonly known as oil of wintergreen, is the primary ingredient in muscle rubs that is toxic if consumed. It is a highly toxic compound, and even small amounts can be dangerous, especially to children. For instance, a lethal dose of pure oil of wintergreen for a 10kg child is approximately 5mL, which is equivalent to 5 grams of methyl salicylate. Ingesting methyl salicylate can lead to severe health issues, including nausea, vomiting, tinnitus, tachypnea, confusion, breathing difficulties, and even collapse.
The toxicity of muscle rubs when consumed is a significant concern, especially considering the tragic case of a 17-year-old US athlete, Arielle Newman, who died in 2007. An overdose of a muscle rub containing methyl salicylate was found to be the cause of her death. This incident highlighted the potential dangers of these seemingly harmless topical creams when used excessively or ingested.
It is crucial to follow the instructions and warnings on the labels of muscle rubs. These products are intended for external use only and should be kept out of the reach of children. In case of accidental ingestion, immediate medical attention should be sought, and poison control centers should be contacted for guidance and support. Additionally, it is important to be cautious when applying these products and avoid areas near the eyes, mouth, nose, and genitals, as advised by medical professionals.
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Friction burns can occur from rough materials
Muscle rubs are topical pain relievers that are applied to the skin to alleviate mild muscle and joint pain. They are available over the counter as creams, gels, lotions, ointments, or patches. Typically, these products create a warming or cooling sensation at the application site. However, in rare cases, they can cause serious skin injuries, ranging from mild to severe chemical burns.
Friction burns, also known as "rub burns" or "rug burns", occur when the skin comes into forceful contact with a rough or abrasive surface, generating heat and causing damage. This can happen in various scenarios, such as during sports or accidents, or when using defective products with rough or uneven surfaces. The severity of friction burns can vary, with first- ,second- and third-degree friction burns possible.
To prevent friction burns, it is important to take safety precautions, especially when engaging in activities that could potentially cause them. For example, in the workplace, employers should ensure that machinery and equipment are properly maintained and that employees are provided with personal protective equipment, such as gloves and safety glasses.
In the context of muscle rubs, while the warming or cooling sensation is expected, any signs of actual burning, blistering, or severe redness at the application site should be taken seriously. If such symptoms occur, it is crucial to discontinue the use of the product and seek medical attention.
Although rare, muscle rubs have been associated with serious burns, including second- and third-degree burns, with products containing menthol or a combination of menthol and methyl salicylate as the active ingredients. Therefore, it is important to be vigilant and seek appropriate medical care if any adverse reactions occur.
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Serious cases require immediate medical attention
Topical muscle pain relievers are available over the counter and are intended to provide relief for mild muscle and joint pain. They are available as creams, lotions, ointments, gels, and patches. They are applied to the skin and produce a local sensation of warmth or coolness.
However, in rare cases, these products have been known to cause serious burns and other injuries. The U.S. Food and Drug Administration (FDA) has received consumer complaints about mild to severe chemical burns from the use of certain brand-name products. These burns can occur after just one application of the product, with severe burning or blistering occurring within 24 hours. The FDA has identified the following products as having caused burns in some consumers: Icy Hot, Bengay, Capzasin, Flexall, and Mentholatum.
The active ingredients in these products that have been linked to burns are menthol, methyl salicylate, and capsaicin. The majority of second- and third-degree burns occurred with products containing menthol as the single active ingredient and products containing both menthol and methyl salicylate, at concentrations greater than 3% menthol and 10% methyl salicylate.
If you experience any of the following symptoms after using a topical muscle pain reliever, seek immediate medical attention:
- Pain
- Swelling
- Blistering
- Severe redness
- Increased or unusual pain at the application site
- Nausea or vomiting
- Ringing in the ears
- Difficulty breathing
- Collapse
In addition, a very serious allergic reaction to these medications is rare, but get medical help right away if you notice any symptoms such as a rash, itching or swelling (especially of the face, tongue, or throat), severe dizziness, or trouble breathing.
It is important to follow the directions on the product package and the advice of your doctor or pharmacist when using these products. Do not use on children under 12 years of age without medical advice, and do not apply near the eyes, mouth, nose, or genitals.
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Frequently asked questions
Muscle rubs are topical pain relievers that produce a warming or cooling sensation on the skin. In rare cases, some people may experience an allergic reaction to the active ingredients in the rub, which can lead to serious burns and other side effects. If you experience any redness, burning, blistering, or other unusual symptoms, seek medical attention immediately.
The active ingredients in muscle rubs that have been associated with burns include menthol, methyl salicylate, and capsaicin. These ingredients can be found in over-the-counter (OTC) topical muscle relief products such as Bengay, Icy Hot, and Flexall.
To reduce the risk of experiencing burns or other side effects, carefully read and follow the directions on the product label. Do not use on broken or damaged skin, and avoid applying the product near sensitive areas such as the eyes, mouth, nose, or genitals. If you experience any pain, redness, or other unusual symptoms, discontinue use and consult a medical professional.























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