How to get rid of underarm smell

Fresh sweat is usually not strongly scented. Odour develops when skin bacteria break down sweat and oils, especially in the warm, covered underarm area. Hair, tight clothing, exercise, heat and heavy sweating can make the smell more noticeable. Persistent odour is not a sign that someone is unclean; skin irritation, infection or excessive sweating can also contribute.

Clean the underarms with a gentle cleanser, rinse thoroughly and pat dry. Apply antiperspirant to dry skin, often in the evening if the product directions allow, and wash clothing after heavy sweating. Choose breathable fabrics and change out of damp tops. Avoid harsh scrubbing or fragranced products if they sting or cause a rash. A clinician can discuss prescription antiperspirant when store products do not control sweating; botulinum toxin treatment may be considered for troublesome sweating after assessment.

Arrange a dermatology or primary-care review if the odour continues despite careful washing and antiperspirant use, or if sweating interferes with work, sleep or social activities. Seek prompt advice for a new rash, pain, swelling, drainage, fever, or an odour that changes abruptly. Sudden body-odour changes with other new symptoms should be assessed rather than masked with stronger products.

Ask whether excessive sweating, irritation or infection could be contributing; which antiperspirant strength suits your skin; and whether prescription antiperspirant or botulinum toxin treatment is appropriate for your pattern of sweating.