Medical experts warn of confusion between shingles and Rove beetle dermatitis

Medical professionals in Vietnam are warning the public about the potential for misdiagnosing skin conditions, specifically the confusion between shingles (herpes zoster) and dermatitis caused by Rove beetles (Paederus).

Shingles is caused by the reactivation of the Varicella-Zoster virus, which remains latent in nerve cells after a chickenpox infection. It typically presents as burning pain, itching, or tingling followed by clusters of blisters along a nerve path. While often associated with aging, individuals with chronic conditions such as diabetes, kidney disease, or compromised immune systems face a significantly higher risk of infection and complications.

In contrast, dermatitis caused by Rove beetles is an inflammatory reaction to pederin, a toxin found in the insects. This condition often manifests as red, burning streaks or blisters that resemble burns, frequently appearing 12 to 48 hours after contact. Because the symptoms—redness and blistering—can mimic shingles, patients may seek incorrect treatments. Experts advise caution when experiencing localized burning sensations or unexplained skin lesions.