Antiseptics are substances used to prevent the growth of harmful microorganisms on living tissues, such as skin. They are commonly used in medical settings to clean wounds and prepare skin before surgeries. Examples of antiseptics include alcohol, iodine, and hydrogen peroxide, which help reduce the risk of infections. These agents work by killing or inhibiting the growth of bacteria, viruses, and fungi. Using antiseptics is crucial for maintaining hygiene and safety, especially in hospitals and clinics. Proper use of antiseptics can significantly lower the chances of infections and promote faster healing of injuries.