Hello dear
I understand your concern
Your symptoms could be due to
Intertrigo which is inflammation of the body folds: diabetes, improper hygiene, obesity are risk factor
Fungal infection.
I would suggest to consult your physician for examination and take proper prescribed medicine.
Following treatment will help you:
For intertrigo:
Apply a cream containing combination of antibiotic and steroid on the affected area like mupirocin ointment and
cortisone cream twice daily for 10 days.
For fungal infection:
Application of antifungal cream like
clotrimazole for 2 week
Oral antifungal tablet like terfinadine can be used
Besides this wear cotton underwear, avoid strenuous physical activities, stay in cool airy environment, maintain hygiene, do not share towel, clothes.
Drink plenty of water, do regualr exercise, and eat healthy diet
Hope this may help you
Best regards
Dr. Sagar