Why do I get spots?

A spot, zit or pimple is formed when a gland in the skin, which normally secrets natural oils, becomes infected and, as a result, fills up with pus. In teenagers, the most common cause is the increased hormonal activity during puberty. This enlarges the glands, making them produce more oil, which makes blockages and infection more likely. Male 'androgen' hormones are the big offenders, which is why boys tend to get it worse. Thorough washing helps to prevent zits, though beware of scrubbing existing blemishes, as this can irritate the skin and make them worse. Antibacterial medications such as benzoyl peroxide, available over the counter, are much more effective. They work by killing the bacteria that infect the glands.