Drysol for Foot Hyperhidrosis: What to Expect, and What It Doesn't Fix

By Paul G.
Published: August 23, 2026

If a doctor prescribed you Drysol for your feet, or you are researching it before an appointment, this post is for you. It covers what the treatment actually involves day to day, why feet are the toughest spot for it, and the part of the problem it does not touch.

What Counts as Foot Hyperhidrosis?

Everybody's feet sweat. Hyperhidrosis is different. It means sweating far beyond what heat or exercise explains, and when it happens on the soles, doctors call it plantar hyperhidrosis. The signs are hard to miss: socks soaked by midday, feet sliding inside your shoes, wet footprints on tile floors.

The Cleveland Clinic's hyperhidrosis page is a good plain read on the condition. Two things worth knowing from it: this affects millions of people, and it is treatable. Nobody has to just live with it.

How Drysol Works for Sweaty Feet

Drysol is prescription-strength aluminum chloride hexahydrate at 20 percent, roughly double the strongest over-the-counter option. Per PubChem, the aluminum forms a plug inside the sweat duct, so the gland cannot push sweat to the surface. Enough nights of that, and the sweating drops in a real, measurable way.

The routine is where prescriptions get won or lost. Drysol goes on at night, on completely dry skin, and gets washed off in the morning. Night matters because sweat glands slow down while you sleep, and the product needs that quiet window to form the plug. Dry skin matters because aluminum chloride reacts with water and turns harsh on the skin. Most people start nightly, and once the sweating is under control, they cut back to once or twice a week to maintain it.

What Users Report

Reports on Drysol for feet follow a pattern. When people follow the routine exactly, many see a real drop in sweating within one to two weeks, and for some it is life-changing. The complaints follow a pattern too. Burning and stinging show up more on feet than underarms, especially the first week. Some people have to take breaks from it when the irritation builds up. And the plugs are temporary, so if you stop completely, the sweating comes back over a few weeks.

I wrote a full post on Drysol side effects on feet if that side concerns you, and a comparison of Drysol against Certain Dri and Driclor if you are still deciding between strengths.

Why Feet Are the Hardest Case

Underarm users get away with sloppy technique. Foot users usually do not, and there are three reasons.

First, the skin on your soles is the thickest on your body, so the treatment has more to get through. Second, feet produce more sweat than almost anywhere else, which means the plugs face a heavier load. Third, and biggest: socks and shoes. The treatment needs dry skin at night and benefits from dry conditions in general, but feet spend all day sealed in warm, damp footwear. That environment works against the product around the clock.

So if you commit to Drysol for your feet, commit to the supporting habits too. Dry your feet fully before bed, down to the skin between your toes. Give shoes a full day off between wears. Change socks during the day if they get damp. The prescription works a lot better when the rest of the day is not undoing it.

If Drysol Is Not Enough

Some feet beat Drysol. If you have followed the routine for several weeks and your socks are still soaked, that is worth another conversation with your doctor, because the ladder does not stop here.

The usual next steps: iontophoresis, which runs a mild electrical current through a shallow water bath and has a solid track record for soles, with at-home devices available. Prescription pills that dial down sweating body-wide, with their own side effects to weigh. And Botox injections, which work well on soles but sting and wear off after some months. A doctor who treats hyperhidrosis can walk you through which fits your case. The point is that there are real options past the bottle.

What I Do for My Own Sweaty Feet

I want to share my own situation here, with an honest caveat first. My feet sweat a lot, but I have never been diagnosed with hyperhidrosis, so I cannot tell you how my "a lot" compares to yours. What I can tell you is what years of trial and error landed me on, after the over-the-counter options let me down.

I focus on two things. First, the smell, because that is the part other people notice right away, and the part that used to embarrass me. Second, sock changes, two or three times a day. I know that is not ideal. It is what it is. My feet sweat the most in the morning, so I start the day in cotton socks to soak that up. Around midday I switch to a cotton and bamboo blend. Then one more change around 4 or 5. I do it without thinking now.

The result: no smell, and no irritation, because nothing in that routine burns my skin. For me, that is the right trade. It may not be right for you, and if your sweating is heavy enough that a doctor is in the picture, follow that path. But the advice is there if you want to try it.

The Smell Is a Separate Problem

Now the part that surprises a lot of hyperhidrosis sufferers: getting the sweat under control does not always fix the smell.

Sweat itself is close to odorless. The smell comes from bacteria that eat the sweat, on your skin and inside your shoes. Drysol cuts the sweat supply, which helps, but the bacteria are still there, and every pair of shoes you own has been collecting them through every soaked-sock day. Plenty of people get their sweating handled and find the odor sticks around out of the shoes alone.

That side needs its own routine, and it is the side I know well. In the morning, the roll-on I use goes on before socks. It is a foot deodorant, not an antiperspirant, so it goes after the bacteria instead of the sweat glands, and there is no aluminum chloride in it, which matters if your skin is already dealing with Drysol. At night, a shoe spray treats the shoes themselves. If you use Drysol too, keep the timing separate: Drysol at night per the label, the deodorant in the morning after you wash it off.

If the sock-change habit from my routine sounds doable, carry an extra pair or two with you and the materials matter there too. Merino and bamboo blends handle moisture better than plain cotton. I compared them in my sock guide. It is not a cure for anything. It just takes a wet afternoon and makes it a dry one, and with heavy sweating, that counts for a lot.

Frequently Asked Questions

How long does Drysol take to work on feet?

Most users who follow the nightly routine see less sweating within one to two weeks. Feet often take longer than underarms because the skin is thicker and the conditions are tougher. If several weeks of correct use changes nothing, bring that result back to your doctor, since it points toward the next treatment options.

Do you have to use Drysol forever?

As long as you want the effect, some form of maintenance continues, usually once or twice a week after the initial nightly stretch. The plugs it forms are temporary, so stopping completely brings the sweating back over a few weeks. Many people cycle it based on season or symptoms, with their doctor's guidance.

Does foot hyperhidrosis cause foot odor?

It feeds it. All that sweat is food and moisture for the bacteria that make the smell, on your skin and in your shoes. But the odor is its own problem with its own fix, and cutting the sweat alone does not always clear it, especially the smell that built up in your shoes.

Can I use a foot deodorant along with Drysol?

Yes, they do different jobs, and the timing keeps them apart: Drysol at night on dry skin, washed off in the morning, then the foot deodorant in the morning before socks. If your skin is irritated or broken from the treatment, let it calm down before putting anything else on it. My post on putting deodorant on your feet covers the deodorant side.