What should you know about foul body odour?

Sweat itself is usually not strongly scented. Odour develops when bacteria break down sweat and other substances on the skin, especially in the underarms, groin, feet, or skin folds. Heat, exercise, tight clothing, infrequent washing, and heavy sweating can make it more noticeable. Certain foods, medicines, hormonal changes, and skin infections may also alter the smell. A new odour that continues despite regular cleansing is worth discussing with a dermatologist because the treatment depends on whether excess sweating, irritation, or infection is involved.

Wash affected areas gently, dry skin folds carefully, change damp clothing, and choose breathable fabrics. An over-the-counter antiperspirant may help when sweat is the main trigger; apply it to completely dry skin as directed. Avoid scrubbing harshly or layering fragrance over the odour, since irritation can worsen the problem. A clinician may recommend Prescription Antiperspirant for stronger sweating, or Botox For Sweating when sweating remains difficult to control.

Arrange an appointment if the smell is sudden, persistent, unusually sweet or fishy, associated with a rash, pain, sores, discharge, fever, or night sweats, or appears without increased sweating. Seek prompt care for rapidly spreading redness, marked swelling, or feeling acutely unwell.

Ask whether the odour suggests bromhidrosis, a skin infection, or another trigger; whether your current products could be irritating the skin; and which option fits the areas affected and your pattern of sweating.