A breast rash can be worrying, especially if there is no clear cause. However, in most cases, a breast rash is not a cause for concern and can be treated at home.
Rashes can vary in location, shape, and size, and can be accompanied by other symptoms such as itchiness, pain, or discharge.
A healthcare professional should be consulted if the rash does not improve within a few days or if it worsens.
This article will look at the possible causes of a breast rash and how it can be treated.
Common Causes of a Breast Rash
Rashes on the breast or chest are usually temporary and often self-resolving.
But in some instances, a breast rash may be caused by a more serious condition that requires medical attention.
Skin rash
The skin on the breast is prone to many common and relatively harmless rashes.
Some common rashes include:
Psoriasis: Scaly, itchy patches of skin that show up when your immune system goes haywire and attacks your body.
Scabies: Bites from the mite Sarcoptes scabiei. The bites appear as a line of little bumps on your skin and become itchier at night.
Shingles: Painful, itchy blisters that are from the same virus that causes chickenpox.
Yeast: This fungus normally lives on your skin. When there is an overgrowth, it can lead to an itchy rash. This frequently occurs in the folds of your skin.
Intertrigo: Intertrigo is when your skin rubs together too much. It can trap moisture and create friction. Besides a red or brown rash, your skin may swell and itch. It may have a funny smell. This can happen in the area under your breast.
Nipple eczema: Nipple eczema can lead to a rash around one or both of your nipples. The skin around them may get dry and scaly, or you could have a rash that feels moist to the touch. You may notice a burning feeling if you’re nursing.
Some common symptoms of skin rash include:
Changes in skin color
Inflammation and swelling
Itching
Cracked or broken skin
Discharge, which may have an odor
Sores or blisters
Inflammatory breast cancer
Inflammatory breast cancer (IBC) is a rare form of breast cancer that can develop quickly and tends to be aggressive.
It accounts for 1–5% of all breast cancers in the United States.
In people with IBC, the cancer cells block lymph vessels, causing inflammation of the skin.
IBC symptoms can resemble a rash or skin irritation and can also include:
Breast swelling
Thickening of the skin on the breast
Small ridges or indents that look like orange peel
Changes in skin color
Pain, tenderness, or itching
Feeling of warmth or heaviness in one breast
If you have any concerns that you may have inflammatory breast cancer, contact your healthcare professional for an evaluation right away.
Mastitis
Mastitis is an inflammation of breast tissue.
There are several different types:
Lactational mastitis occurs during breastfeeding and is the most common type of mastitis.
Periductal mastitis is a benign inflammatory condition that is usually seen in women during their reproductive years.
Idiopathic granulomatous mastitis is a rare condition most likely to occur within five years of giving birth.
Some common symptoms of mastitis include:
Breast abscess
A breast abscess is caused by a bacterial infection.
Abscesses can develop any time the skin around the nipples becomes cracked or broken.
A majority of cases result from breastfeeding, but an abscess can also indicate diabetes or IBC.
Symptoms include:
Breast pain
Skin changes
Swelling
Discharge
Warmth in the breast
Mammary duct ectasia
In people with mammary duct ectasia, the milk ducts lose elasticity and become wider or twisted.
It usually occurs around menopause but can appear at other times.
The symptoms include:
Pain and tenderness
Discharge, which may be white, green-black, or grey
An inverted nipple
Breast lump
Paget’s disease of the breast
Paget’s disease of the breast is a type of cancer that affects the skin on the nipple and usually the skin around the nipple, known as the areola.
Paget’s disease is rare and occurs in 1–4% of all breast cancer cases.
Symptoms of Paget’s disease include:
Itching or tingling of the nipple or areola
Skin changes on or around the nipple, such as inflammation, crusting, flaking, or thickening
Flattening of the nipple
Yellow or bloody discharge from the nipple
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Symptoms
Common symptoms of breast rash include:
Blisters
Redness of skin
Sores
Swelling and itching
Formation of pus
A breast rash formed due to an infection may show symptoms such as fever, chills, and pain.
However, rashes from infections tend to get better as your body fights off infection.
In some cases, rashes do not get better with time and cause concerning symptoms like:
Persistent itching
Rash that does not go away
Swelling and enlargement of breasts
Tenderness
Pitted orange peel on the skin
Bruised red or purple skin that does not get better
Treatment
Skin Rashes
Treatments for many common rashes include avoiding irritants on the skin.
This can include soaps or cosmetics that produce an allergic reaction, particular types of clothing material, or friction from a bra or clothing.
A medication or topical ointment may be prescribed. In most cases, the rash will resolve with appropriate treatment.
Dermatitis or eczema of the nipple may occur during breastfeeding, as the nipples become irritated by the baby’s mouth, tight clothing, or trapped moisture.
Consulting with a doctor, healthcare professional, or lactation specialist is recommended if you are having breast symptoms and are breastfeeding.
Inflammatory breast cancer (IBC)
IBC may be asymptomatic until skin changes become noticeable.
Once this happens, prompt treatment is needed as cancer may be advanced.
Experts consider IBC at least a stage 3 cancer at diagnosis.
Common forms of treatment include:
Chemotherapy
Surgery to remove the cancer
Radiation therapy
Hormone therapy
Mastitis
Anyone with symptoms of mastitis should seek treatment to prevent it.
In some cases, a doctor or healthcare professional may also wish to rule out cancer and other more serious conditions with similar symptoms.
Breast abscess
Treatment is necessary and usually includes draining the abscess.
A doctor may also carry out tests to rule out breast cancer and diabetes, depending on the full clinical picture.
Mammary duct ectasia
Often no treatment is necessary in the case of mammary duct ectasia, but a doctor or healthcare professional may prescribe antibiotics if an infection is present.
They may also carry out tests to rule out other conditions, such as breast cancer.
Paget’s disease of the breast
Treatment for Paget’s disease depends upon the location of tumors in the breast.
Possible treatments include:
Surgery to remove the breast and possibly lymph nodes
Surgery to remove the nipple and areola only
Chemotherapy or hormonal treatments
Radiation to treat any other tumors
Apart from all the above, keeping the skin clean, cool, and dry can help treat many causes of rashes on or between the breasts.
This can be done by taking the following actions:
Cleanse the affected area with soap and warm water.
Apply an unscented moisturizer, antibiotic ointment, or antifungal cream as recommended by your doctor or healthcare professional.
Avoid scratching the skin.
Avoid using scented soaps, lotions, or perfumes around the breasts.
Wear soft, comfortable clothing made from breathable fabrics, such as cotton.
Consider placing a special soft cloth with antimicrobial materials, like InterDry, between the breasts to reduce itching and rubbing.
Change sweaty clothes as soon as possible after exercising or being outside in the heat.
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When To Seek Medical Attention
Many rashes usually heal on their own or with over-the-counter topical creams.
However, it is important to have a doctor or healthcare professional evaluate your rash to ensure you receive the care you need.
Certain symptoms of a breast rash can be signs of an infection or a more serious disease.
Red flags that indicate you should see a doctor immediately include:
The nipple suddenly becomes inverted
One or both breasts change in size or texture
The skin on the breast takes on a pitted appearance (like the skin of an orange)
Pus starts coming from the rash
Bloody nipple drainage occurs
You have a fever
If a rash on your chest or breast area is accompanied by trouble breathing, nausea, or other signs of an allergic reaction, seek medical attention immediately.
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