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Does topical benzocaine have any side effects?

Topical benzocaine has a variety of possible side effects. An allergic reaction to this medication will cause symptoms, such as hives, chest tightness, itching, swelling and trouble breathing. If you have these severe allergic symptoms, call 911. It is a medical emergency. Other possible side effects could include: nasal congestion, increased pain, irritation, redness, fever, swelling or rash. If any of these possible side effects worsen, you should speak to your doctor as soon as possible. Another serious and life-threatening side effect is methemoglobinemia.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.