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Rashes Under Breast Causes and Relief Remedies


Intertrigo under breasts or rash is an irritation that often develops under the breasts where the skin turns red and itchy.

Having a rash under breast can be very uncomfortable and embarrassing because of the irritation and itchiness caused by the chafing. There’s always that awkward temptation where you feel like scratching your boobs in public is the only way to take away the itchiness and irritation caused by rashes

Why do I get rashes under breasts? Treatments and remedies of under boob rashes
Why rashes under breasts?

Causes of underboob rash

There are several causes of this skin rashes. Let me point out some of them.

1. Wearing an ill-fitting bra

You can develop several infections from bras. Wearing a bra with the wrong fit and size can lead to itchy rash between breasts. You may also develop sores under your boobs if you wear a tight-fitting bra.

2. Allergies

Those red spots on you are having on your breasts could be an allergic reaction. When caused by allergy, it is known as allergic dermatitis. Dermatitis on this area is a form of allergy that affects the skin around your boobs. Your body may be allergic to certain foods, plants, and even cosmetics.

You can also develop itchy rashes under your boobs as a side effect of certain medication. An example of an allergic under boob rash is Hives. Hive is an itchy red rash on breasts caused by histamines.

3. Excessive sweating

Excessive sweating or hyperhidrosis is a condition in which the body sweat glands produce more sweat than is needed to cool the body. Sweating under your breast can lead to yeast and fungal infections which will cause itchy rashes in this area.

4. Humid climate

You may develop a heat rash on breasts if you expose your body to hot humid climate. Heat rash occurs when your sweat glands become blocked and sweat can’t be excreted between the pores. Instead, the sweat pools under your skin causing an irritation and a rash. This is can be made worse if you are dressed in tight clothes because the excess sweat produced by the body can also cause yeast infection between your boobs.

5. Eczema

A red patch of inflamed skin on your breasts that itch severely is a sign of eczema under your boobs. Eczema can develop small, fluid-filled red bumps that ooze and crust over. Eczema can also be found on face, hands, feet and behind the knees.

6. Candidiasis

A painful and itchy rash can be a sign of candidiasis. Candidiasis is a fungal infection caused by a yeast called candida. Candida yeasts thrive in the moist, warm environment under the breasts. They cause painful and uncomfortable small red spots on breasts.

7. Psoriasis

Inverse psoriasis is a form of the disease that affects skin folds. These are areas of your body like breasts where the skin rubs against skin. The disease causes patches of itchy, small red spots on breasts. Psoriasis is often mistaken for candidiasis because they have almost similar symptoms.

8. Cancer

Inflammatory red rash under your boobs can be a warning sign of breast cancer. The other symptoms of inflammatory cancer are pink or red dots on breasts, inverted nipple(s) that point inward rather than outward. Even though this type of cancer is very rare, just go to check up to make sure you are not a victim.

Home remedies for rash under breasts

Most of the rashes often disappear after a period. There are many creams that you can purchase to take care of your rashes but there are several methods readily available at home that you can use to treat the itchy and painful rashes under breasts.

1. Cold compress

  • Wrap some ice in a thin cotton towel and put it over the affected area for 6 to 10 minutes, take a break and repeat again.
  • Another option is to apply skim milk and cold water compressing equal parts of both ingredients to relieve itching and reduce swelling.
  • Another treatment for sweat rash under breasts is to take cold baths. Taking cold baths will help close the skin pores, thus reducing sweating and the appearance of the rash on your boobs.

2. Cotton

  • Place a thin piece of cotton between the lower part of your breasts and the skin underneath to absorb moisture and create a barrier for the skin rash underboobs .
  • This will keep your skin dry and kill the fungus that always comes due to dumbness.
  • Soft paper towels or dinner napkins can also come in handy if you can’t access cotton.

3. Treat Rash under breasts using vinegar

  • There several options in which you can use vinegar to treat a skin rash under your boobs. You can start with applying apple cider vinegar on the red blotch on breasts. First, you should wash the infected area with mild soapy water, rinse with cold water and then pat the area to dry. Mix one teaspoonful of apple cider vinegar in a cup of water and apply it to the affected area. Do this two or three times a day until the small red spots disappear.
  • Another option is to mix one-half cup of white vinegar in half a bucket of hot water. Use the water to wash all your bras and dry them in direct sunlight. This will kill all the germs and reduce sweating.

4. Use cornstarch

  • Clean the area affected by the skin on the affected part with mild soap under water and then pat dry with a towel.
  • Do this at least twice daily until you completely get rid of the rashes on your boobs.
  • When the area is completely dry, lightly dust cornstarch over it. Cornstarch’s ability to absorb moisture will keep your skin dry and heal your rashes.

5. Try out coconut oil

  • Applying coconut oil to the infected area has got two main advantages;
  • Coconut oil has a soothing and healing effect on skin that helps provide relief for underboob Plus, due to its greasy nature, it will help reduce friction that causes rashes under breasts.
  • Coconut oil has also got antibacterial and antifungal properties which can help kill the yeast infections in this area.

6. Calamine Lotion

  • Clean the affected area with a mild soap and lukewarm water. Pat dry the area with a towel.
  • Use a cotton ball to gently apply the calamite oil. Repeat the process several times a day.


A rash under breast may either be just an annoyance that will go away within a few days or it may be a symptom of a more severe problem like cancer. It is therefore essential to seek the advice of a medical professional to ascertain which category it lies in. 

Practicing high standards of hygiene like taking regular baths and washing your bras can help reduce the chances of getting this problem. Also, ensure that you wear fitting lightweight clothing preferably made of cotton or natural fibers that help absorb moisture and keep your body sweat free. You can also skip wearing a bra as much as possible until the rash clears up.


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