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A fungus under the breast is more common than reported and is prevalent in women with large busts who live in hot and humid (tropical) climates. The fungal infection arises due to a combination of factors and is referred to as submammary candidiasis. These infections are often caused by yeast-like fungi (candida) or mold-like fungi (dermatophytes or skin fungus referred to as tinea infections), although a breast fungus is usually a result of a candida infection.

A fungal infection of the skin occurring under or around the breast develops due to a host of factors which contribute to and promote fungal growth. These factors revolve around the three essential factors for fungal development – moisture, heat and darkness. If the person suffering with a fungus under the breast lives in a hot and humid climate, this will further contribute to fungal growth.

Typically, women with larger busts are more prone to a fungal infection around or under the breast. This provides the fungus with an ideal environment under the breast to grow and develop – moisture from perspiration, warmth from body heat and and darkness as this is an area that is usually covered at all times in most cultures.

Symptoms :

  • Persistent itching of the affected area.
  • Rough, cracked skin sometimes with open wounds due to scratching.
  • Darkening of the affected area.
  • Moisture and dampness which may be due to perspiration.
  • Sloughing of the skin with a dust like residue noted within the brassiere.
  • Musty, damp odor which does not occur in every case.


Causes :

  • A fungal infection usually arises if there is irritation or inflammation of the skin or even a small cut.
  • Fungal spores are prevalent in hot and humid climates and will quickly infect an open wound.
  • Women with large busts using tight brassieres are more prone as incorrectly fitting underwear will cause irritation, inflammation and tiny cuts under the breast.
  • Secondary spread due to scratching from fungal infections on other areas of the body like the feet (tinea pedis or athlete’s foot), groin (tinea cruris or jock itch).

Treatment :

  • Usually topical applications like antifungal skin creams and gels can be sufficient to treat the infection.
  • Oral anti-fungal medication may be necessary in more serious cases.
  • Studies have shown that tea tree oil or 5% impregnated creams are also useful in treating fungal infections.

Management :

  • Due to the nature of the area, it is difficult to get sufficient airflow and natural light on the affected area but this should be done as often as possible.
  • Ensure that you use correctly sized brassieres. If your brassiere is ‘cutting’ under your breast, it is likely that you need a different cup size.
  • Always ensure that you wipe thoroughly under the breast after bathing.
  • Use a drying agent like an anti-fungal powder to reduce moisture under the breast.

Naturopathic & Homeopathic Treatment :

  • Use a high percentage impregnated tea tree cream. Most tea tree creams have a 5% impregnation in a cream or gel base. A tea tree 10% impregnation is more effective if available and should be applied on the affected area for 10 minutes and then washed off thoroughly.

  • Calendula officinalis tincture can be applied on the affected area after bathing to keep the area dry and prevent further fungal growth. It is essential to use a tincture in a 60% alcohol solvent. Calendula infusions (water based) can aggravate your condition and should be avoided.
  • Homeopathic remedies that may be useful include Silica D6 to 6CH, Sepia officinalis 6CH to 30CH or Lachesis mutus/muta 6CH to 30CH. Do not use these remedies in a complex but rather use each individual remedy for up to 6 weeks. Refer to the homeopathic anti-itch formula to assist with symptomatic relief from itching.
  • A high dose of zinc and selenium may also assist with your condition. Always use these supplements after eating to prevent any heartburn.
  • Reducing your intake of refined carbohydrates (sugar, flour) may assist with your condition.
  • Continue any treatment for a minimum of 6 weeks even if it appears like the fungal infection has cleared or the infection may recur
  • 3 Responses to “Submammary Candidiasis – Fungus Under The Breast”

    • [...] is useful for persistent fungal infections especially in athlete’s foot, jock itch and a fungus under the breast. It should be applied on the skin carefully, usually spread on the affected area rather than being [...]

    • Lisa:

      I have the fungus problem in between my breast,due from working out,but I also have another question can a woman get jocks itch on the outside on the external genitalia? If so can tea tree oil also be applied with care since it does have a menthol properties?

    • admin:

      Hi Lisa

      Yes, women can get jock itch of the external genitalia. Tea tree oil is very effective against skin molds and yeast infections but extra care is warranted around the vagina and anus. These sensitive areas will easily become inflamed due to the action of tea tree oil. One solution is to use a tea tree cream (10% impregnation) on the area bout 5 to 10 minutes before bathing. Then rinse the area of thoroughly when bathing before you start soaping yourself up. After bathing, dry the area thoroughly (use a hair dryer if necessary) and apply a Calendula-Symphytum (marigold and comfrey) tincture combination. If you are not scratching the area, then it won’t burn. Due to the alcohol concentration within this tincture combination, it will evaporate almost immediately and you can rest assured that it won’t soil your clothing. This tincture combination will prevent any further fungal growth.