What is a common sign of skin infection?

A common sign of skin infection includes symptoms such as redness, swelling, and pus formation. These indicators arise when the body's immune response to an invading pathogen leads to increased blood flow in the affected area, causing redness and swelling. Pus formation results from the collection of white blood cells, dead tissue, and bacteria, indicating that an infection is actively present. Identifying these signs is crucial for early detection and treatment of skin infections, thereby preventing more severe health issues.

The other options, while they may indicate various skin conditions, do not specifically reflect the typical signs of infection. Flakiness, dry patches, and uneven skin tone can relate to eczema, dry skin, or other dermatological issues that do not necessarily stem from an infectious cause. Understanding the specific signs of infection is vital for proper diagnosis and management in cosmetology practices.