How common is body odour in erythrasma?

Erythrasma is a superficial bacterial infection that often affects the folds of the groin, armpits, or between the toes. The affected skin may look reddish-brown, feel mildly irritated, and develop a noticeable smell when moisture and bacteria collect together. Odour can become more obvious after sweating or wearing occlusive clothing. Body odour alone has many possible explanations, so this symptom does not identify erythrasma by itself. A clinician may look for the characteristic colour and fine scaling and may use a light examination to support the diagnosis.

Keep the area gently clean and dry, patting rather than rubbing after washing. Change sweaty clothing and socks promptly, choose breathable fabrics, and avoid sharing towels. Do not scrub, bleach, or apply strong fragranced products to irritated skin. Treatment may involve a clinician-prescribed antibacterial medicine; use it for the recommended course even if the smell improves sooner. If the area is repeatedly damp, discuss ways to reduce friction and trapped moisture.

Arrange a clinical assessment if the odour persists despite careful washing and drying, or if you notice a spreading rash, pain, marked swelling, drainage, or broken skin. Prompt advice is sensible when symptoms involve the feet and you have diabetes, reduced sensation, or poor circulation. Seek urgent help for rapidly worsening redness, severe pain, fever, or feeling acutely unwell.

Could the colour and location of this rash fit erythrasma? Do I need an examination under a special light or another test? Which treatment is suitable for this skin fold, and how should I prevent moisture from returning?