The best soaps for hidradenitis suppurativa (HS) contain antimicrobial ingredients like benzoyl peroxide, chlorhexidine, or sodium hypochlorite. These active ingredients reduce the bacterial load on skin without being too harsh for the already inflamed, sensitive areas where HS flares tend to occur. Choosing the right cleanser, and knowing how to use it, can make a real difference in managing breakouts between flares.
Why Soap Choice Matters With HS
HS starts with blocked hair follicles in areas like the armpits, groin, and under the breasts. Once those follicles become plugged, bacteria can multiply and trigger the painful, inflamed nodules and abscesses that define the condition. The right soap won’t cure HS, but it can help keep bacterial levels low enough to reduce the frequency and severity of flares. The wrong soap, on the other hand, can strip or irritate the skin and actually make things worse.
Benzoyl Peroxide Washes
Benzoyl peroxide is one of the most commonly recommended active ingredients for HS. It works as an antiseptic that prevents bacteria from multiplying on the skin’s surface. You may already know it from acne products, but body washes containing benzoyl peroxide are widely available and well suited for the larger skin areas affected by HS. Dermatologists often suggest using a benzoyl peroxide wash in the morning to disinfect the skin and limit bacterial buildup throughout the day.
One important note: benzoyl peroxide can bleach fabrics. Use white towels when drying off, and let your skin dry before putting on clothes you care about. It can also cause dryness or mild irritation when you first start using it, so beginning every other day and working up to daily use is a reasonable approach.
Chlorhexidine Washes
Chlorhexidine is a medical-grade antiseptic commonly used before surgeries and in hospital settings. A 4% chlorhexidine wash is the concentration typically recommended for skin conditions like HS. It has a broad antimicrobial effect, meaning it works against many types of bacteria rather than just one strain. Like benzoyl peroxide, it’s gentle enough for people with HS when used as directed.
A practical approach recommended by dermatologists is to use a benzoyl peroxide or chlorhexidine wash in the morning for bacterial control, then switch to a gentle, fragrance-free cleanser in the evening to avoid over-drying the skin. You don’t need to use both antimicrobial ingredients at the same time. Pick one and stick with it unless your dermatologist advises otherwise.
Sodium Hypochlorite Body Washes
Sodium hypochlorite is the active ingredient in household bleach, but don’t let that scare you. Over-the-counter body washes use an extremely diluted concentration (around 0.006%) that’s safe for daily skin contact. A recent real-world study published in The Journal of Clinical and Aesthetic Dermatology had HS patients use a sodium hypochlorite body wash daily for four weeks and found it was well tolerated across all severity levels.
These washes offer a notable advantage: because they work differently than antibiotics, they don’t contribute to antibiotic resistance. That’s especially relevant for people with HS who may already be on oral or topical antibiotics as part of their treatment plan. Sodium hypochlorite washes are available without a prescription and can serve as a gentler alternative to traditional bleach baths, which require more careful measurement and can be harsher on the skin.
What to Avoid in a Soap
Ingredients that irritate or dry out the skin can provoke HS flares or worsen existing ones. Steer clear of soaps with added fragrances, dyes, and harsh sulfate-based surfactants like sodium lauryl sulfate (SLS). These strip the skin’s natural barrier, which is already compromised in areas affected by HS. Traditional bar soaps tend to be more alkaline than your skin prefers, which can also contribute to irritation.
If you’re looking for a non-medicated option for your second daily wash or for days when your skin feels especially raw, soap-free cleansers (sometimes called syndet bars or gentle body washes) are a better choice than standard soap. Look for products labeled fragrance-free, hypoallergenic, and pH-balanced. “Unscented” and “fragrance-free” are not the same thing: unscented products may still contain masking fragrances that can irritate sensitive skin.
How to Wash Affected Areas
The way you wash matters almost as much as what you wash with. HS-affected skin is often painful, and active lesions can include open wounds or draining areas that are easily traumatized. Use your hands or a very soft cloth rather than loofahs, scrub brushes, or exfoliating mitts. Apply your cleanser gently and let it sit on the skin for 30 to 60 seconds before rinsing, which gives the active ingredient time to work without requiring you to scrub.
Rinse thoroughly with lukewarm water. Hot water can increase inflammation and irritation. Pat dry with a clean towel rather than rubbing, paying special attention to skin folds where moisture can get trapped. Lingering moisture in the armpits or groin creates an environment where bacteria thrive, so drying these areas completely is a small step that can help between washes.
Putting It All Together
A practical daily routine for HS looks something like this: one wash per day with an antimicrobial cleanser (benzoyl peroxide, chlorhexidine, or sodium hypochlorite), and a second wash with a gentle, fragrance-free cleanser if you shower twice. On days with active, draining lesions, prioritize the gentlest option you have and avoid scrubbing the area. Keep the skin dry between washes, and avoid reapplying products multiple times a day in hopes of faster results, as over-cleansing disrupts the skin barrier and can backfire.
No cleanser alone will control moderate or severe HS. But consistent use of the right soap is one of the few things you can manage at home that genuinely reduces bacterial load and supports whatever other treatments you’re using.