Does Benzoyl Peroxide Help Cold Sores? Why It Causes Irritation

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Pimple vs. Cold Sore: Causes and Symptoms

According to the American Academy of Dermatology (AAD), pimples occur when oil, dead skin cells, or bacteria clog a pore. The AAD explains that pimples occur more frequently during puberty, between the ages of 12 and 17. In contrast, the Mayo Clinic notes that cold sores are contagious viral blisters caused by the herpes simplex virus. The World Health Organization estimates that 67% of the global population under age 50 are infected with the virus. As the Mayo Clinic explains, there is no cure for the herpes virus, but there are ways of lessening and preventing flare-ups.

Does Benzoyl Peroxide Help Cold Sores?

No, benzoyl peroxide is not an effective treatment for cold sores. While it is the standard over-the-counter solution for acne, it is specifically formulated to kill bacteria and clear clogged pores. Because cold sores are caused by a viral infection rather than a bacterial pore blockage, acne medications will not cure them and may instead cause significant irritation to the sensitive, thin skin around your mouth.

Treating Pimples and Cold Sores

For a pimple, start with an over-the-counter treatment. If it doesn’t work, the AAD recommends consulting your doctor for a stronger treatment plan. Unfortunately, cold sores have no one-stop treatment. When you feel one coming on, using a fast acting cold sore treatment may help to speed up healing and reduce the blisters’ recurrence. Always consult a healthcare professional before starting new topical treatments.

When to See a Doctor

If you develop an oral sore with painful or lasting symptoms, be sure to visit your doctor or dentist. Seek professional care if:

• Your cold sore has lingered for more than two weeks.
• Your cold sores frequently recur.
• You have a weaker immune system.
• The virus irritates your eyes (a potential sign of ocular herpes).

To prevent spreading the virus, don’t share any utensils with others, and learn when is a cold sore healed enough to kiss to avoid transmission during active flare-ups.

Frequently Asked Questions

Can I use benzoyl peroxide on a cold sore?

No. Benzoyl peroxide is for acne. Using it on a cold sore will not treat the underlying virus and can cause unnecessary irritation to the area.

Are cold sores curable?

As the Mayo Clinic explains, there is no cure for the herpes virus, but there are ways of lessening and preventing flare-ups through antiviral medications.

When should I seek professional help for a sore?

You should visit your doctor or dentist if the sore is painful, lasts longer than two weeks, recurs frequently, or if you have a weakened immune system or eye irritation, as it is important to understand the canker sore vs cold sore differences for proper diagnosis.

This article is intended to promote understanding of general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.