Myth: All antibiotics reduce the effectiveness of birth control pills. Fact: Most prescription antibiotics and oral contraceptives come with safety inserts that warn of certain drugs that can compromise the effectiveness of oral contraceptives. Research has revealed that one drug, Rifampin, may interfere with birth control.
There are several types of cysts on head: Dermoid Cyst. Dermoid cysts, known as pilar cysts, are congenital type of cysts that contain hair, fluid, teeth or sweat glands. Dermoid cysts can be located on or in the skin and usually occur on the face, lower back, inside the skull or in the ovaries.
Sometimes they are about the size of a pea, but they can reach several centimetres in diameter. It is not possible to tell epidermoid and pilar cysts apart, except with the aid of a microscope. Pilar cysts are most commonly found on the scalp. Epidermoid cysts are usually found on the face, neck and upper trunk. Neither type of cyst is usually harmful and, unless they are causing problems, can be left alone. They are not cancerous and cannot spread to other parts of the body or be passed on to others.