Fiberglass Dermatitis: Symptoms, Treatment, and Prevention

Fiberglass (glass wool) consists of fine glass fibers that cause mechanical skin irritation—fiberglass dermatitis. Some types may be carcinogenic (IARC Group 2B); proper PPE is critical.

Clinical Features

• Onset: Hours to days post-exposure.
• Distribution: Exposed areas (hands, forearms, face, neck).
• Signs: Erythema, papules, vesicles; intense pruritus, burning/tingling.
• Diagnostic clue: Glass fibers visible under magnification embedded in stratum corneum.

Treatment

• Immediate decontamination: Rinse with cool water; use adhesive tape to remove surface fibers. Avoid vigorous rubbing.
• Symptomatic: Cool compresses, colloidal oatmeal baths, calamine lotion.
• Topical corticosteroids (mid-potency) for significant inflammation.
• Oral antihistamines (sedating at night) for pruritus.
• Antibiotics only if secondary infection (impetiginization).

Prevention

• PPE: N95/respirator, goggles, gloves, long sleeves, coveralls.
• Wet-cutting/vacuum dust collection.
• Wash work clothes separately; shower immediately after exposure.