ärritäjä
An irritant is a substance that causes a local inflammatory reaction or other adverse effect upon contact with a body surface such as the skin, eyes, or respiratory tract. This reaction is typically a response to the substance's ability to interact with tissues and trigger a defense mechanism. Irritants can be chemical, physical, or biological in nature.
Chemical irritants include a wide range of substances. Acids and bases, for example, can denature proteins in
Physical irritants are non-chemical agents that can cause damage. Examples include rough surfaces that cause friction
Biological irritants are living organisms or their products that can provoke an inflammatory response. Certain plants,
Symptoms of irritation vary depending on the site of contact and the nature of the irritant. Skin