brimstone - an old name for sulfur. native sulfur, native sulphur. atomic number 16, sulfur, sulphur, S - an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
These patches of red, and sometimes irritated or itchy, skin can appear anywhere on the body, but they are most commonly found on the arms, neck, and face. These blotchy patches can be caused by a variety of factors, such as weather, genetics, allergies, or environmental conditions.
Infections. Infections can cause localized changes in skin color. Cuts and scrapes can develop infections that turn the surrounding skin red or white and change the texture of the skin. Erythrasma is a chronic skin infection caused by bacteria that causes pink skin with brownish flaky patches and wrinkling.