Clay Allergy: Rare but Real – Symptoms and Management

Clay allergy (contact dermatitis or systemic) is uncommon but documented. Triggers: proteins/minerals in clay (kaolin, bentonite, polymer clays).

Symptoms

• Contact – erythema, vesicles, pruritus, scaling (hands, arms).
• Inhalation (dust) – rhinitis, asthma, hypersensitivity pneumonitis.
• Systemic – urticaria, angioedema, anaphylaxis (rare).

Diagnosis

• Patch testing (contact).
• Specific IgE / skin prick (rarely available).

Management

• Avoidance – substitute materials.
• Gloves (nitrile), mask (N95) if handling unavoidable.
• Topical steroids for dermatitis.
• Epinephrine autoinjector if anaphylaxis history.