Treatment for intertrigo under the breasts

A mild fold rash may settle when moisture and rubbing are controlled, but soreness, peeling, or a spreading rash can need a targeted medicine.

Intertrigo is inflammation where warm skin surfaces touch. Under the breasts, sweat, trapped moisture, tight clothing, and skin-on-skin friction can weaken the outer skin and cause redness, burning, itching, cracking, or an unpleasant odour.

A yeast infection can develop in the damaged, moist fold. Yeast-related rash may have a vivid red appearance with small spots just beyond the main irritated area. This pattern is not enough to choose treatment on its own; eczema, contact irritation, and bacterial infection can look similar.

You can read more about [Intertrigo](/conditions/intertrigo/) and [Skin Yeast Infection](/conditions/cutaneous-candidiasis/).

Gently wash the area, rinse away cleanser, and pat it completely dry rather than rubbing. Change out of damp clothing promptly. A breathable, well-fitting bra can limit rubbing; a clean, dry layer of soft fabric may help keep the fold separated.

Avoid fragranced products, harsh scrubbing, and applying several new creams at once. A clinician or pharmacist may recommend a barrier product to shield irritated skin. If yeast is suspected, they may prescribe or recommend a suitable antifungal; use it for the advised course and follow the directions on the product.

For recurrent moisture, ask whether [Prescription Antiperspirant](/treatments/medical-dermatology/prescription-antiperspirant/) is appropriate. More detail on [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/) can help you understand that option.

Arrange a medical review if the rash is spreading, repeatedly returning, cracked, weeping, foul-smelling, or not improving after careful drying and friction control. A clinician may examine the fold and decide whether testing or a different treatment is needed.

Seek prompt care for rapidly increasing pain, warmth, swelling, pus, fever, red streaking, or feeling unwell. These features can signal a deeper or bacterial infection rather than simple irritation.

A new rash elsewhere can also be assessed through the broader topic of [Skin Rash](/symptoms/skin-rash/).

Ask: Does this look like irritation, yeast, eczema, or bacterial infection? Which product should I use, where should it be applied, and for how long? What should I do if the skin splits or the rash returns? Could sweating, clothing, a new detergent, or another skin condition be contributing?