Final answer:
Skin infections can affect pruritus by causing inflammation and irritation of the skin, triggering the release of inflammatory mediators that activate itch receptors. Some skin infections can directly stimulate itch receptors, causing intense itching.
Step-by-step explanation:
Pruritus, or itching, is a common symptom of skin infections. Skin infections can affect pruritus by causing inflammation and irritation of the skin. When the skin is infected, the body's immune response is triggered, leading to the release of inflammatory mediators that can activate itch receptors in the skin.
For example, when a person has a bacterial skin infection, such as impetigo, the presence of bacteria on the skin triggers an immune response. This immune response causes inflammation and itching in the affected area.
In addition, certain skin infections, such as scabies or fungal infections, can directly stimulate itch receptors in the skin, leading to intense itching.