The inflammation is caused by viruses, bacteria, irritants or allergens. It results from either exposure to allergens (allergic contact dermatitis) or irritants (irritant contact dermatitis). Chemical hazards typically found in laboratory settings include carcinogens, toxins, irritants, corrosives, and sensitizers. Bacterial infections, allergies, other irritants, and dryness are also common causes. However, this does not mean that materials are not irritants or allergens. Chemical pneumonitis is inflammation of the lung caused by aspirating or inhaling irritants. COPD develops as a significant and chronic inflammatory response to inhaled irritants. Baby shampoos often contain detergent surfactants, perfumes, quaternium-15 and other eczemagenic irritants. The cough reflex expels all irritants within the mucous membrane to the outside. Ant venom is any of, or a mixture of, irritants and toxins inflicted by ants. All alcohols are mild skin irritants. I were tear-inducing irritants rather than fatal or disabling poisons. The inflammation may be caused by irritants in the environment. This relieves the redness of the eye caused by minor ocular irritants. Avoid irritants (such as hot or spicy foods, alcohol, and tobacco) to minimize the discomfort.