Scientists have found a way to manipulate the neurons in mice that respond to itch — and, in the process, have settled a longstanding debate: Is itchiness just a form of pain, or a separate, unique ...

Scientists have now shown why it may not be a good idea to scratch an itchy rash, even though it feels good. This research used a mouse model of a kind of eczema known as allergic contact dermatitis, ...

When normal mice were allowed to scratch, their ears became swollen and filled with inflammatory immune cells called neutrophils. In contrast, inflammation and swelling were much milder in normal mice ...

It seems hard to believe that a basic human sensation — one that can be evoked by a simple mosquito bite — still has scientists scratching their heads. Yet despite centuries of study, understanding ...