Overview
Mold and yeast are two types of fungus. Both can cause allergic reactions. Fungal spores can circulate in the air and may cause allergic rhinitis when inhaled.
Review Date 11/18/2022
Updated by: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.