Dealing with body odour: practical steps

Fresh sweat is usually not strongly scented. Odour develops when bacteria on the skin break down sweat and other substances, especially in the underarms, groin, feet, and skin folds. Heat, exercise, tight clothing, hormonal changes, certain medicines, and heavy sweating can make it more noticeable. A sudden change in smell can also reflect a skin problem or a general health issue, so context matters.

Look for accompanying rash, scaling, discharge, pain, or unusually heavy sweating. The smell itself does not identify one cause, and personal hygiene is not the only factor.

Wash odour-prone areas regularly, dry skin folds carefully, and change sweaty clothes and socks promptly. Choose breathable fabrics and wash clothing thoroughly. An antiperspirant reduces sweat reaching the skin; apply a suitable product to dry skin as directed. If these steps are insufficient, a clinician may discuss prescription antiperspirant or botulinum toxin treatment for troublesome sweating.

Arrange an assessment when odour persists despite careful washing and clothing changes, begins suddenly, or comes with a rash, sores, pain, discharge, fever, or a major change in sweating. Seek prompt care for rapidly spreading redness, severe tenderness, or feeling acutely unwell. A clinician can examine the skin and review medicines or other triggers.

Could a rash, infection, medicine, or excess sweating be contributing? Which antiperspirant should I use and where? Would prescription treatment or botulinum toxin be suitable? What skin changes need urgent review?