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Laundry Detergent Rash: 7 Ways to Treat It

Laundry detergent can do more than clean clothes — it can cause rashes.

Laundry detergent is necessary to clean clothes, brighten colors, remove stains and whiten whites. However, many laundry detergents contain harsh chemicals that can irritate your skin (1).

If you experience a laundry detergent rash, you’re not alone. Many people experience negative side effects from regular laundry detergent.

At the end of this guide, you should have some top tips going forward. We’ll help you identify laundry detergent rashes as well as find some preventative measures. Plus, we’ll give you tips on shopping for a detergent that’s kind on your clothes and skin.

Key Takeaways

  • Laundry detergent rashes can be caused by allergens or contact dermatitis, with symptoms like red, scaly, and itchy skin.
  • Identifying a laundry detergent rash often involves looking for rashes in areas where clothing is tight, such as behind knees or underarms.
  • To get rid of rashes, try remedies like cold compresses, oatmeal baths, or coconut oil, but consult a doctor if symptoms worsen.
  • Prevent future rashes by using hypoallergenic detergents, doing an extra rinse, and avoiding scented products.

What Causes Laundry Detergent Rashes?

If you experience a rash or hives from your laundry detergent, it’s either caused by allergens or contact dermatitis.


Many laundry detergents contain allergens: substances that people can be allergic to.

The chemicals in your laundry detergent can trigger an allergic reaction. Usually, the synthetic fragrance is the main culprit of an allergic reaction. At least 1% of the population has a fragrance allergy (2).

Preservatives and dyes in laundry detergent are also known to cause allergic reactions and sensitivities. You’re more likely to experience an allergic reaction if you have eczema or existing skin allergies (3).

Contact Dermatitis

Contact dermatitis is a type of eczema triggered by exposure to certain substances, such as laundry detergents (4). Contact dermatitis is a red, itchy rash caused by your skin coming into direct contact with a substance you’re allergic to (5).

There are two types of contact dermatitis: irritant and allergic.

Irritant contact dermatitis is more common and occurs after repeated exposure to something, such as laundry detergent (6). Your skin becomes inflamed due to this repeated contact with the irritant. The irritant removes oils and moisture from your skin and penetrates deep, causing a red, scaly and itchy rash.

Allergic contact dermatitis is a delayed response to an allergen (7). You may notice symptoms up to 72 hours after being exposed to the substance. This is known as a delayed hypersensitivity.

Most people with allergic contact dermatitis experience red, itchy, swollen and blistering rashes. Thankfully, this allergy settles down once you’ve stopped exposure to the allergen.

How to Identify Laundry Detergent Rash

We’ll help you identify whether your rash is because of laundry detergent.

Symptoms of a Detergent Allergy

If you have a detergent allergy, you might experience (8):

  • Red skin.
  • Scaly patches of skin.
  • Hives.
  • Cracked or leathery skin.
  • Burning or itching.
  • Blisters — they might ooze.
  • Sensitivity to the sun.
  • Swelling in the eyes, face or genital area.

What Does a Rash From Laundry Detergents Look Like?

It’s hard to identify a washing powder rash by appearance because it looks similar to a generic eczema rash. Both types of rashes are scaly, red, cracked and itchy.

Some other things that can help determine whether laundry detergent caused the rash include:

  • The rash is mostly contained to areas where clothing is tight on your body. This could be your underarms, behind your knees, in the crook of your arm and between your legs.
  • If it is widespread, then it will still be contained to areas where your clothes touch. For instance, if checking for a detergent rash on a child, check under their diaper. As long as you aren’t using cloth diapers, this can help determine if it’s caused by detergent. If there is no rash there — it’s probably a detergent rash.
  • If it’s present on one side of your face, and you’re a side sleeper, then the detergent on your pillow could be the cause.
  • If it’s sudden, ask yourself if you’ve recently changed detergents.
  • You can see an allergist who can perform a patch test for you.

What If It’s Not Your Detergent?

If you’ve ruled out that it’s definitely not your laundry detergent, what else could it be? Here are some other substances that commonly cause similar looking rashes:

  • Bug bites (9).
  • Diaper rash.
  • Beauty products.
  • Soap.
  • Chemicals in rubber, latex or elastic.
  • Touching poisonous plants.
  • An allergic reaction to a medication.
  • Dyes in clothes (10).
  • Hay fever.
  • Infections, such as chickenpox, measles and more.
  • Nettle rash.
  • Sunscreen (11).
  • Baby wipes.
  • Household cleaners.

Take Action

If you can’t figure out the cause of your rash, or the rash worsens, contact your doctor.

How to Get Rid of Rashes From Laundry Detergents

There are some at-home remedies you can try to treat your washing powder rash. However, if symptoms persist or worsen, contact your doctor.


When trying any home remedy, perform a patch test on yourself first. Add the product to the inside of your wrist. If there’s no reaction after 24 hours, you’re good to go. If there is, avoid that specific product or remedy.

Cold Compress

Fill a bag with ice or soak a cloth in cold water. Hold it to the rash until the itching or pain subsides. This helps to limit blood flow to the inflamed area (12). It can reduce swelling straight away, giving you immediate relief.

Oatmeal Bath

Old school, we know! But an oatmeal bath can really help. Just make sure you use colloidal oats — not the kind you eat at breakfast. Oat oil has anti-oxidant and anti-inflammatory benefits which can help your rash (13).

To do this, fill your bathtub with warm water and one cup of colloidal oats. Soak for 30 minutes before rinsing off in a cool shower.

Coconut Oil

We love keeping coconut oil in both our bathroom and kitchen. It serves good use in many situations, including curing rashes. Virgin coconut oil has antibacterial, healing, and anti‐inflammatory qualities (14). You can use it as a moisturizer, applying it directly onto the affected areas of your skin.

Visit the Pharmacy

Your pharmacist can help find the best over-the-counter treatment for your rash. This will usually come as an ointment which you can use daily at home. These are typically inexpensive but effective.

Moisturizing the rash can treat it. Since the allergens in laundry detergent break down the skin’s natural oils and moisture, bringing back that moisture is key.

Aloe Vera

For an inexpensive and at-home option, some health professionals recommend using aloe vera on your rashes. Aloe vera can help to soothe irritation and pain caused by your rash (15).

To use, wash and dry the affected area and apply aloe vera to your skin like a moisturizer.

Preventing Laundry Detergent Rashes

Washing powder rashes can be painful, irritating and for many people, embarrassing. It’s important to know how to prevent these rashes to protect your skin in the future.

We’ve got top tips for you to avoid these rashes:

  • Switch your detergent: To be kinder on the skin, switch out your laundry detergent with something hypoallergenic. Many brands create hypoallergenic detergents. Also, well-known brands often have a hypoallergenic option in their range.
  • Rinse your clothes again: When your washing machine cycle finishes, do an extra rinse. This will help to remove any lingering detergent so that it doesn’t come in contact with your skin.
  • Add distilled white vinegar: On the rinse cycle, add a capful of distilled white vinegar. This will remove any soap and mineral residue as well as soften clothes (16).
  • Use less detergent: Always make sure to follow the manufacturer’s instructions when measuring out detergent. You might be using too much per load which can irritate your skin further.
  • Moisturize: Before you get dressed, use moisturizer all over your body. Not only is this kind to your skin, it acts as a barrier between you and your clothes. That way, detergent has a more difficult time penetrating your skin and causing a rash.
  • Dry your clothes outside: The UV light from the sun can kill bacteria and germs on clothes (17). If they’re that little bit cleaner, you can maybe get away with washing garments less often. This reduces your exposure to laundry detergent.
  • Wash before you wear: When you get new clothes, always wash them before wearing them. This can help remove some of the dyes on the clothes which are known to cause an allergic reaction (18).
  • Skip scented products: We know — fabric softeners and scented stain removers have a lovely aroma. But synthetic fragrances can cause rashes. If you’d like to scent your load of laundry, essential oils are great and they’re all natural.
  • Stick with one detergent: It’s tempting to buy whatever is on sale, but if you know your body likes a certain brand, then stick with it.


How Long Does a Detergent Rash Last?

As long as you continue exposure to the laundry detergent, the rash can remain. But once you switch up to a hypoallergenic detergent, the rash should clear up within two to four weeks (19). If you use a treatment method, it might clear up even quicker.

Can a Dirty Washing Machine Cause a Rash?

Yes. This is especially common if you use cold washes most regularly. Hot water can kill germs and bacteria, but cold water doesn’t. Staphylococcus aureus, a type of bacteria, can live in washing machines and causes rashes (20). To prevent this, we recommend cleaning your washing machine once a month.

Does Allergy-Free Detergent Exist?

There’s no guarantee that you are 100% safe from any laundry detergent. Everybody has different triggers. But good news — you can get hypoallergenic laundry detergents which are usually dermatologically tested. It’s very unlikely that you’ll have an allergic reaction to this type of detergent.

Do Bio-Detergents Cause Allergies?

Researchers found that bio-detergents containing enzymes do not carry a risk of irritant or allergic skin reactions (21). If you buy a bio-detergent for your sensitive skin, you can rest assured that the risk of developing rashes is very minimal.

Can I Suddenly Become Allergic to My Detergent?

Yes, anybody can suddenly develop an allergy of any kind. So, if you’ve been faithful to one brand of detergent for years and suddenly have a skin rash, it could still be that product.

Adult onset allergies mean your body has suddenly identified a substance in the detergent as harmful (22). The cells create histamine which results in a rash. Don’t be alarmed if this happens to you. Simply switch up your detergent to something designed for sensitive skin.

Will a Rash Go Away on Its Own?

Knowing if laundry detergent rash will go away on its own depends on the individual. Some people suffer worse and get recurring rashes that need treatment. Others have a flare up and then it goes away.

Rash, Be Gone

Breaking out in hives or experiencing allergies because of your laundry detergent is normal. The chemicals in detergent cause itchy, irritated and cracking skin. You can solve this by switching to a hypoallergenic and dermatologically-tested detergent.

In the meantime, treat your rash with an over-the-counter moisturizer, coconut oil or a cold compress. If the rash persists or worsens, contact your doctor.

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About the Author

Beth McCallum

Beth McCallum is a freelance writer & book blogger with a degree in creative writing, journalism, and English literature. Beth firmly believes that a tidy house is a tidy mind. She is always looking for new ways to sustainably clean and tidy her house, that's kind on the environment but effective in the house, too!