Strong soaps and detergents,  Some fabrics, like wool or scratchy materials.  Perfumes, skin care products, and makeup.  Pollen and mold Animal dander Tobacco smoke,  Stress and anger,  Dry winter air/low humidity ,Long or hot showers/baths , Dry skin , Sweating , Skin infections or especially dry skin,  Certain hormones Dust or sand Certain foods (usually eggs, dairy products, wheat, soy, and nuts)