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Intertrigo is an inflammatory skin condition that occurs in body folds where skin rubs against skin, trapping heat and moisture. Common sites include the groin, under the breasts, armpits, and abdominal folds. Friction, heat, and sustained moisture break down the skin barrier, and secondary infections with Candida yeast or bacteria frequently develop.

Fungal intertrigo caused by Candida often appears as a bright-red rash with satellite lesions and may have a whitish discharge. Bacterial intertrigo may produce a foul odor, crusting, or pustules. A physician evaluation is important to identify any secondary infection so the correct treatment can be prescribed.

Treatment depends on whether the rash is purely inflammatory or involves a secondary infection. A mild topical corticosteroid reduces inflammation. Topical antifungals such as clotrimazole treat Candida overgrowth, and topical antibiotics such as mupirocin address bacterial superinfection. Keeping the area clean and dry is essential alongside any prescription therapy.

Mild cases may improve with careful skin hygiene, moisture-wicking clothing, and drying agents. However, once a secondary fungal or bacterial infection develops, prescription medication is usually required. Untreated or recurrent intertrigo can lead to chronic skin breakdown, so a physician evaluation is recommended.

Keeping skin folds dry is the most important step. Using moisture-absorbing powders, wearing loose breathable clothing, maintaining a healthy weight, and promptly treating any new redness can significantly reduce recurrences. People with diabetes should maintain good blood sugar control, as elevated glucose promotes Candida growth.

The inflammatory component of intertrigo itself is not contagious. However, a secondary Candida infection can potentially spread to a sexual partner or other skin sites. Bacterial secondary infections caused by organisms like Staphylococcus aureus can also spread through direct contact with infected skin.

People who are obese, have diabetes, sweat excessively, wear tight clothing, or have immune suppression are at significantly higher risk. Infants, athletes, and individuals in hot and humid climates are also more susceptible due to prolonged skin-to-skin contact and moisture.

Doctronic uses an AI-guided evaluation to gather your symptom history and relevant health information. A licensed physician then reviews your case, confirms an appropriate diagnosis, and creates a personalized treatment plan. The entire process is HIPAA-compliant and available to adults 18 and older in any U.S. state.