Why and how do body parts itch? Why does it feel good to scratch

Why Scratching an Itch Feels Amazing

Itchy Lungs: Symptoms, Causes and Treatment

抓痕的迷思！為甚麼抓痕會愈抓愈癢？, 8杯水Meditorial.co

What are itches? What is happening to your body to get an itch

The Search for What Causes Chronic Itching, Science

My skin swells and itches when something hits/scratches it. I know

Why does it feel so good to scratch Athlete's foot? - Quora

Itchy Skin (Pruritus): Causes, Symptoms, and Treatment

Itchy Legs: Causes and Treatment

BBC Radio 4 - The Curious Cases of Rutherford & Fry - Why do you itch and should you scratch?

Why is smacking an itch any better than scratching it? - Quora