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.
The vast majority of epidermoid or pilar cysts are of no great consequence. 1  Epidermal cysts (also known as epithelial or infundibular cysts) are intradermal or subcutaneous tumours. Epidermoid cysts may occur anywhere on the body but occur most often on the face, scalp, neck, back and scrotum. Pilar cysts (also called trichilemmal cysts) are clinically indistinguishable from epidermal cysts.