### What is Erythrasma? Erythrasma is a skin condition caused by the bacteria Corynebacterium minutissimum. It often appears as red or brown patches on the skin and is more common in adults and men. People living in warm, humid climates or shared living spaces like dorms and nursing homes are more susceptible. ### Types of Erythrasma 1. **Interdigital Erythrasma**: This type affects the feet, usually between the last two toes. It can coexist with fungal infections. 2. **Intertriginous Erythrasma**: Common in people with type 2 diabetes, it affects areas where skin touches and rubs together, like skin folds. 3. **Generalized Erythrasma**: Rare and can appear anywhere on the body, more common in women in tropical climates and can be an early sign of type 2 diabetes. ### Symptoms Erythrasma usually shows up as patches of discolored skin. On darker skin, it may appear as a lighter patch with darker edges. Some people experience burning and itchiness, especially in the groin area. ### Diagnosis To diagnose erythrasma, doctors may use: - **Wood’s Lamp**: Ultraviolet light that makes the bacteria glow red. - **Potassium Hydroxide Test**: Determines if the infection is bacterial or fungal. - **Skin Biopsy**: Rarely done, only if other tests are inconclusive. ### Treatment Treatment includes: - **Medications**: Topical creams or oral antibiotics for severe cases. - **Good Hygiene**: Keep affected areas clean and dry. Use regular or antimicrobial soap. - **Over-the-Counter Products**: Hydrocortisone or miconazole cream for itchiness. - **Light Clothing**: Wear loose cotton clothing to reduce sweating. - **Baby Powder**: Apply to damp areas like the groin or armpits. - **Healthy Diet**: Important for managing diabetes, which can contribute to erythrasma. Erythrasma is common and can recur. Consult your doctor if you notice skin changes.