Itchy bumps filled with clear liquid may be blisters. Blisters have many possible causes, such as an injury, eczema, allergies, infections, and more. Treatment may depend on the cause, and home ...

Scratching an itch can bring a contradictory wave of pleasure and misery. A mouse study on scratching, reported in the Jan. 31 Science, fleshes out this head-scratching paradox and could point out ...