Seborrhoeic dermatitis (or seborrhoeic eczema) is a condition that makes your skin red, inflamed and itchy.

Seborrhoeic dermatitis is common in babies under three months. It also affects teenagers and adults. It’s more common in men than women. The inflammation in seborrhoeic dermatitis is thought to be an overreaction to a yeast called Malassezia which is present on your skin.

Seborrhoeic dermatitis commonly affects the oilier parts of your body, such as your face, scalp and chest. The symptoms vary in severity from person to person, from mild dandruff to widespread patches of red, itchy, inflamed skin. You may notice your symptoms flare up at times and then get better again.