Pink Eccrine Chromhidrosis Induced by Excessive Consumption of an Energy Drink.

Eccrine chromhidrosis is a rare condition characterised by the abnormal colouration of eccrine sweat, which may be triggered by endogenous or exogenous factors. We report the case of a 19-year-old male who was referred to us for persistent pink sweating for three months. Clinical examination and further investigations did not provide a clear diagnosis or arguments in favour of pseudochromhidrosis or apocrine chromhidrosis. Investigation of eating habits revealed an excessive consumption of a pink energy drink. The sweat normalised when consumption ceased, and chromhidrosis relapsed after the reintroduction of the drink. The diagnosis of eccrine chromhidrosis was retained. Eccrine chromhidrosis poses a diagnostic challenge, highlighting the importance of thorough patient history-taking, including lifestyle habits, and our case reveals the complex role of food additives present in energy drinks.