In a nutshell While scratching worsens allergic skin conditions like eczema by increasing inflammation, it also activates a ...

We were curious why this is,” said Dr. Daniel Kaplan, an immunologist and dermatologist at the University of Pittsburgh who led the work. Naming the players in the itch-scratch circuit is a step ...

It also makes your blood vessels expand, letting white blood cells and plasma flood in to wash away the invading toxin. This is why your skin becomes red and blotchy. Beware the itch-scratch cycle!