Dry, irritated, and lightly peeling skin are typical side effects of benzoyl peroxide.
Allergic reactions to benzoyl peroxide are usually local, meaning that they only affect the treated skin area.
This article explains the nine signs of an allergic reaction to benzoyl peroxide.
Verywell / Brianna Gilmartin
Learn how to treat an allergic reaction at home versus when to see a healthcare provider.
Stop using benzoyl peroxide if this happens.
How Do I Know if I’m Allergic to Benzoyl Peroxide?
These symptoms will probably continue to worsen until you stop using benzoyl peroxide.
Immediately call 911 or get to the nearest emergency medical center at the first sign of anaphylaxis.
Mildly itchy skin and small hives can be treated with over-the-counter 1% hydrocortisone cream.
Call your provider if this doesn’t sort out the rash within one week.
Call 911 immediately if you develop symptoms of anaphylaxis; never attempt to treat it at home.
Lijima S, Tsunoda T.Twenty cases of allergic contact dermatitis due to benzoyl peroxide in acne patients in Japan.JCIA.
University of Michigan Health.Benzoyl peroxide and hydrocortisone topical.
American Academy of Allergy, Asthma & Immunology.Contact dermatitis overview.
Yale Medicine.Allergic contact dermatitis.
