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How do I manage excessive underarm foul-smelling sweating?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hi doctor,

I would like to consult about my armpits, which sweat excessively even though my workplace is air-conditioned. The odor is so strong that no matter what deodorant or antiperspirant I use, it persists.

Please help.

Hi,

Welcome to icliniq.com.

I understand how distressing and embarrassing excessive underarm sweating and strong odor can be, especially when it persists despite good hygiene and the use of deodorants. Please be reassured that this is a common and treatable condition.

From your description, you appear to have a combination of axillary hyperhidrosis (excessive sweating of the armpits) and bromhidrosis (unpleasant body odor).

The bad smell is usually not caused by sweat itself but occurs when sweat, especially from the apocrine glands in the armpits, is broken down by skin bacteria, producing an unpleasant odor. This can happen even in air-conditioned environments and despite regular washing.

Several factors can contribute, including increased sweat gland activity, bacterial overgrowth, trapped moisture, tight or synthetic clothing, stress, hormonal influences, or, in some cases, underlying medical conditions such as thyroid imbalance or metabolic issues.

Apply Drysol (Aluminium chloride) at night on completely dry skin, as these are much more effective than regular deodorants.

In addition, you need topical antibacterial treatment to reduce odor by controlling bacteria. Wash the armpits once daily with an antibacterial or benzoyl peroxide cleanser.

Lifestyle measures are also important.

  • Wear loose, breathable cotton clothing.

  • Avoid repeated reapplication of deodorants without washing (as this can worsen odor).

  • Keep the underarms dry and consider trimming or removing axillary hair to reduce bacterial buildup.

  • Avoid strong-smelling foods (such as garlic and onions) if you notice they worsen the odor.

If these measures are not sufficient, advanced and very effective treatments are available, such as botulinum toxin (Botox) injections for excessive sweating, which are typically done every six months, or iontophoresis.

I hope this has helped you.

Please feel free to reach out to me again for further queries.

Thank you.

Answered byDr. Misha Saghir

Medically reviewed byiCliniq medical review team

Published At March 28, 2026
Reviewed AtMarch 31, 2026

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