Blains are a common skin disorder that can cause bumps, blisters, or lesions on the skin. Some synonyms for blains include pustules, welts, sores, lesions, and eruptions. Pustules are small, raised spots that contain pus, while welts are raised areas on the skin that are often accompanied by itching. Sores, on the other hand, are open wounds or ulcers that can occur on any part of the body. Lesions are abnormal growths or changes in the skin's texture, while eruptions refer to sudden and often violent outbreaks of a skin condition. Whatever the synonym, it's important to seek medical attention if you experience persistent or severe blains.