How to Manage Smelly Feet

Smelly feet (bromodosis) are common and usually harmless, but they can be embarrassing. The cause is straightforward: your feet have around 250,000 sweat glands — more per square centimetre than anywhere else on the body. When that sweat is trapped in shoes, bacteria on the skin break it down into isovaleric acid, which produces the characteristic odour.

Most cases respond well to basic hygiene changes and home remedies. If yours doesn't, there are medical options that can help.

Why feet smell

Sweat itself is odourless. The smell comes from bacteria — particularly Brevibacterium and Staphylococcus epidermidis — that feed on sweat and dead skin cells. These bacteria thrive in warm, enclosed, damp environments. Feet spend most of the day in exactly those conditions inside shoes.

Some people naturally sweat more from their feet than others. Hormonal changes (particularly during puberty and pregnancy), stress, and certain medications can increase foot sweating. Synthetic shoes and socks that don't wick moisture away make the problem worse.

Athlete's foot (a fungal infection) can contribute to foot odour too. The fungal infection damages the skin, creating more dead skin for bacteria to feed on. If you have itching, flaking, or cracked skin between your toes alongside the odour, athlete's foot may be a factor.

Home remedies that work

Daily washing and drying

Wash your feet with soap every day, paying attention to between the toes. The drying step is just as important as the washing — bacteria multiply faster on damp skin. Dry thoroughly between each toe before putting socks on.

Socks and shoes

Wear socks made from natural fibres (wool or cotton) or moisture-wicking synthetic blends designed for sports. Change your socks daily, or twice daily if you sweat heavily. Avoid wearing the same pair of shoes two days running — alternate between at least two pairs so each has 24 hours to dry out.

Open-toed shoes and sandals reduce sweating by allowing airflow. Leather shoes breathe better than synthetic ones. If trainers are the culprit, removable insoles that you can wash help.

Antiperspirant

Apply a regular antiperspirant (the roll-on type works best) to the soles of clean, dry feet before bed. The aluminium chloride blocks sweat glands and reduces moisture production. This is one of the most effective home measures and costs nothing extra if you already have antiperspirant at home.

Foot soaks

A salt water soak (half a cup of salt per litre of warm water, 20 minutes) creates an environment that's less hospitable to bacteria. A black tea soak works similarly — brew two teabags in a pint of water, let it cool, and soak for 20 minutes. The tannic acid has mild antibacterial and astringent properties.

Neither is a one-time fix. Daily soaking for a week or two is needed to see a difference.

Medicated insoles and powders

Antibacterial insoles and foot powders absorb moisture and reduce bacterial growth. They're available over the counter from pharmacies. Replace insoles regularly — they lose effectiveness once they're saturated.

Medical treatment options

If home measures aren't enough, your GP can prescribe a stronger aluminium chloride solution (such as Driclor) to apply to the feet. For athlete's foot, an antifungal cream (terbinafine or clotrimazole) applied for 2-4 weeks usually clears the infection.

For severe hyperhidrosis (excessive sweating) that doesn't respond to topical antiperspirants, further options include iontophoresis (a treatment that passes a mild electrical current through water to the skin, reducing sweat gland activity) and, in resistant cases, botulinum toxin injections to the soles of the feet.

These are specialist treatments rather than first-line options. Your GP can assess whether they're appropriate and arrange referral if needed.

How we can help

If you've tried the home remedies and they haven't worked, a GP consultation (£150) can identify whether athlete's foot, hyperhidrosis, or another condition is contributing. We can prescribe antifungal treatment, stronger antiperspirants, and refer for specialist care if needed.

It's not the most dramatic medical complaint, but it's one that genuinely affects people's confidence and quality of life. There's no need to put up with it if basic measures aren't solving the problem.