SULFA DRUGS. One of the more common drug allergies is that to sulfa drugs. Sulfa drugs are more appropriately labeled sulfonamides and are derivatives of para-amino benzoic acid. The table below lists common medications that contain a sulfonamide component.
A boil is a common, painful infection of a hair follicle and the surrounding skin. It begins as a red lump, then fills with pus as white blood cells rush in to fight the infection. Good home care can often clear up a single boil, also known as a skin abscess. A doctor's care is needed when a boil resists treatment or develops in certain vulnerable areas of the body.
Boils, also commonly known as furuncles, are deep skin infections that begin in a hair follicle or oil gland. A boil will generally begin as a tender, reddened 1-inch spot and progress into a firm, painful lump. Other signs and symptoms include: 1  White or yellow center (known as pustule).2  Significant discomfort.oils, also commonly known as furuncles, are deep skin infections that begin in a hair follicle or oil gland. A boil will generally begin as a tender, reddened 1-inch spot and progress into a firm, painful lump. Other signs and symptoms include: 1  White or yellow center (known as pustule). 2  Significant discomfort.