dermatology
Dermatitis

Sudden rise in allergic contact dermatitis to benzalkonium chloride

There has been a dramatic increase in allergic contact dermatitis with benzalkonium chloride (BAC)-containing products such as antiseptic handwashes – and the problem is likely to worsen because of the COVID-19 pandemic, dermatologists have warned. While previously thought to be a rare cause of contact allergy, rates have increased 10-fold in recent years, possibly due ...

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