Key takeaways

• Heat, sweat and a uniform that rubs in one place can lead to boils or lumps that keep coming back. Skin under a waistband, tool belt or harness can stay sweaty and chafed for a whole shift.

• Lumps that return to the same places, like the groin, buttocks or inner thighs, can be a sign of hidradenitis suppurativa (HS). HS is a long-term skin condition, not a hygiene problem, and a dermatologist can tell you whether it's HS or a boil.

• Small changes at work can help, like a dry spare layer, looser work pants and short breaks to cool down. You can ask your employer for changes like these in your own words.

• If a lump hurts during your shift, leave it alone instead of squeezing it. On a break, holding a warm, wet cloth on the spot can ease the pain.

• Get care right away if a lump comes with a fever or red streaks spreading from it. If lumps keep coming back in the same spots, a dermatologist can find the cause and make a plan with you.

If you sweat through a uniform all day, the heat, moisture and friction can set off recurring boils. The same mix can trigger flares of hidradenitis suppurativa (HS), a long-term skin condition with lumps that look a lot like boils.

If your boils keep returning to the groin, buttocks, inner thighs, armpits or belt line, show them to a dermatologist. A few changes to your workday can help in the meantime, and a video visit can fit around your shift.

Why heat, sweat and workwear set off boils

When you sweat through a shift, your skin stays damp for hours while your uniform presses and slides over the same patch. That mix irritates the hair follicles in skin folds, which is where boils and HS lumps tend to form.

On a kitchen line or a long delivery route, there's often no chance to step away, cool off or change clothes. So the same skin stays wet and under pressure for the whole shift.

A boil and an HS lump can look alike

A boil is usually a bacterial infection of a hair follicle that fills with pus. Most are caused by Staphylococcus aureus, a common type of bacteria. They tend to show up on the face, neck, armpits, buttocks and thighs, as MedlinePlus guidance on boils explains.

HS is a long-term inflammatory skin condition, and its lumps can look a lot like boils. The FDA overview of hidradenitis suppurativa is clear on two points: HS is not contagious, and it is not the result of poor hygiene.

HS lumps tend to return to the same spots. Over time, they can leave scars or tunnels under the skin, which are small channels beneath the surface that may drain.

That same-spot pattern is worth pointing out at a visit, because a dermatologist can tell the two conditions apart. For a closer look, read about how HS differs from boils.

Where your job rubs: pressure points by work setting

Every job puts pressure and moisture in different places. The table shows common patterns, though your own trouble spots may differ.

Protective gear holds heat in, so sweat builds wherever it sits. OSHA's heat safety guidance counts protective gear among clothing that makes it harder for the body to lose extra heat. It names kitchens and warehousing as indoor heat settings and encourages water, rest and shade for anyone working in heat.

If your lumps show up along the waistband, groin or seat, our guide to recurring groin and buttock lumps explains what they can mean.

Small changes that fit a workday

The goal during a shift is simple: keep your skin cooler and drier, with less friction. Sweating and overheating can cause an HS flare-up, and dermatologists' HS self-care tips suggest looser clothing if tight clothes seem to trigger yours.

The ideas below follow a typical workday. They're practical suggestions, and a dermatologist can tailor them to your job and uniform.

What to wear and pack

• Choose looser-fitting work pants and underwear.

• Keep a spare set of underwear and a base layer in your truck or locker.

During your shift

• Set belts and straps a notch looser where safety allows.

• Change out of soaked layers at lunch.

• Spend breaks in shade or air conditioning, and drink water.

• Pat sweaty skin dry with a clean towel instead of wiping it.

After work

• Shower with a gentle wash, and skip the scrubbing.

• Avoid shaving over sore or bumpy spots.

If the trouble is mostly between your legs, our guide to chafing on the inner thighs explains how it differs from other bumps.

Getting through a shift with a painful or draining lump

When a lump is sore or draining mid-shift, a few simple steps can protect your skin until you see a dermatologist.

• Leave the lump alone, since squeezing or popping it can injure or irritate the skin.

• On a break, hold a clean washcloth soaked in warm water on the spot for about 10 minutes. This can ease pain and help the lump drain.

• Cover a draining spot with a clean, absorbent dressing, and change it when it gets damp.

• Wash your hands before and after you touch the area, and keep your towel to yourself.

It helps to keep a small kit in your bag with dressings, tape, a spare shirt and a plastic bag for soiled items.

Drainage and odor can be managed with the right plan from a dermatologist. Our guide to managing odor and drainage covers what helps day to day.

Talking to your employer

You decide how much to share about your health at work. Often a short, practical conversation with your supervisor is enough to make the workday easier.

What to say

You don't need legal terms or a formal letter. As the Job Accommodation Network (JAN) explains in its guide on how to ask for an accommodation, plain English is enough. You don't have to mention the Americans with Disabilities Act (ADA), and the request doesn't need to be in writing.

Still, it can help to jot down what you asked for and when. Something like this works:

"My skin flares up with heat and sweat. Could I take a couple of short breaks to change into a dry layer, and try a looser uniform?"

If your employer asks for a note, a dermatologist can write one that explains what you need.

What accommodation can look like

Common accommodation ideas for skin conditions include different protective gear or uniforms when possible, an adjusted work-site temperature or dress code, and frequent breaks. Those ideas apply to skin conditions in general, so think about what would help most in your job:

• A different uniform or alternative protective gear, when the job allows it

• Short breaks to cool off or change into a dry layer

• Access to a cooler area, such as an air-conditioned break room

• Flexible scheduling for medical appointments

The federal ADA covers employers with 15 or more employees, plus state and local governments. Whether it applies to you depends on your situation, including how much your condition limits you.

Your employer may offer a different option that also works. This is general information, not legal advice.

When recurring boils need a dermatologist, and when to get care right away

Get care right away if a boil comes with a fever or red streaks spreading from it. Contact a doctor soon about a boil on your face or spine.

See a dermatologist if a boil doesn't improve with home care within about a week or keeps coming back after treatment. The same goes if pain is making it hard to do your job.

These patterns can also point to HS and are worth a visit:

• lumps return in the same spots

• lumps leave scars or tunnels, or keep draining

• several lumps show up at once

A visit gives you a name for what's happening and a plan to manage it. Our guide on what recurring boils can mean explains which kind of doctor can help.

A video visit that fits around your shift

Taking a day off for a doctor's visit is hard when your next shift starts in the morning. With a video visit, you can see a Tono HS specialist on a lunch break, before work or from your truck once it's parked.

Video care is one way to reach a dermatologist experienced in HS. Tono has cared for more than 20,000 patients across a 33-state clinical footprint, and every visit is led by a specialist.

Appointments are available in 2 days or less. Most insurance is accepted, and most plans don't need a referral.

Before the visit, you can send photos of your skin, which helps if a lump has calmed down by appointment day. Prescriptions go to your local pharmacy. Between visits, the Tono app lets you book appointments, message your care team and manage prescriptions from your phone.

Flexible scheduling matters to patients, too. In a 2025 review of digital HS care, 27% of patients believed flexible telehealth scheduling could help them keep appointments.

That review also notes that some flare procedures still need an in-person visit. When you need an in-person exam or a procedure such as drainage, Tono coordinates that care.

Our article on why virtual-first HS care works explains the thinking behind this model. You can also see how visits are set up through Tono's HS program.

Frequently asked questions

Can sitting in a truck all day cause boils?

Sitting for hours can contribute. Pressure, heat and sweat build up on the seat, which can irritate hair follicles and may set off flares.

Are boils contagious to coworkers?

Boils caused by staph bacteria can spread through contact with drainage or shared items like towels. HS lumps don't spread from person to person.

Can I keep working with HS?

Many people with HS keep working. Treatment from a dermatologist, combined with small changes at work, can make shifts more manageable.

Do I need a referral to see a Tono HS specialist?

Most plans don't require one. A few do, so check your coverage when you book.

What work clothes are easiest on irritated skin?

Looser fits with fewer tight seams over problem areas tend to cause less friction. Your dermatologist can tailor clothing advice to your uniform and gear.

Getting answers without losing a shift

When boils keep coming back, a dermatologist can name the pattern and build a plan around the job you already have. You can start with a video visit on a break or before your shift.

Schedule an in-person or virtual appointment with a Tono Health specialist.